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-rw-r--r--common/elapi/Makefile.am26
-rw-r--r--common/elapi/elapi_internal.c247
-rw-r--r--common/elapi/elapi_priv.h72
-rw-r--r--common/elapi/elapi_sink.c500
-rw-r--r--common/elapi/elapi_sink.h39
-rw-r--r--common/elapi/elapi_test/Makefile.am14
-rw-r--r--common/elapi/elapi_test/elapi_ut.conf27
-rw-r--r--common/elapi/providers/file/file_provider.c155
-rw-r--r--common/elapi/providers/file/file_provider.h79
9 files changed, 1016 insertions, 143 deletions
diff --git a/common/elapi/Makefile.am b/common/elapi/Makefile.am
index 2ebf9e833..1fdc9c69e 100644
--- a/common/elapi/Makefile.am
+++ b/common/elapi/Makefile.am
@@ -7,11 +7,13 @@ APP_NAME_SIZE=@appnamesize@
SUBDIRS = elapi_test
topdir=$(srcdir)/..
+prvdrdir=$(srcdir)/providers
-AM_CFLAGS = -DELAPI_DEFAULT_CONFIG_DIR=\"$(DEFAULT_CONF_DIR)\" \
- -DELAPI_DEFAULT_CONFIG_APP_DIR=\"$(DEFAULT_CONF_APP_DIR)\" \
- -DELAPI_DEFAULT_APP_NAME=\"$(APP_NAME)\" \
- -DELAPI_DEFAULT_APP_NAME_SIZE=$(APP_NAME_SIZE)
+AM_CFLAGS = \
+ -DELAPI_DEFAULT_CONFIG_DIR=\"$(DEFAULT_CONF_DIR)\" \
+ -DELAPI_DEFAULT_CONFIG_APP_DIR=\"$(DEFAULT_CONF_APP_DIR)\" \
+ -DELAPI_DEFAULT_APP_NAME=\"$(APP_NAME)\" \
+ -DELAPI_DEFAULT_APP_NAME_SIZE=$(APP_NAME_SIZE)
if HAVE_GCC
AM_CFLAGS += \
@@ -19,7 +21,8 @@ if HAVE_GCC
-Wcast-align -Wwrite-strings
endif
-AM_CPPFLAGS = -I$(topdir) -I$(topdir)/ini -I$(topdir)/trace -I$(topdir)/collection $(TRACE_LEVEL)
+AM_CPPFLAGS = -I$(topdir) -I$(topdir)/ini -I$(topdir)/trace -I$(topdir)/collection \
+ -I$(topdir)/elapi/providers/file $(TRACE_LEVEL)
ACLOCAL_AMFLAGS = -I m4
@@ -27,15 +30,22 @@ ACLOCAL_AMFLAGS = -I m4
pkgconfigdir = $(libdir)/pkgconfig
dist_noinst_DATA = elapi.pc
-# Build library
-noinst_LTLIBRARIES = libelapi.la
+# Build libraries
+noinst_LTLIBRARIES = libprovider.la libelapi.la
+
+libprovider_la_SOURCES = \
+ $(prvdrdir)/file/file_provider.c \
+ $(prvdrdir)/file/file_provider.h
+
libelapi_la_SOURCES = \
elapi_event.c \
elapi_log.c \
elapi_internal.c \
elapi_event.h \
+ elapi_sink.c \
elapi_priv.h \
elapi_sink.h \
elapi_log.h \
elapi_async.h \
- elapi.h
+ elapi.h \
+ ./libprovider.la
diff --git a/common/elapi/elapi_internal.c b/common/elapi/elapi_internal.c
index 3007fc2e5..8b1071e8d 100644
--- a/common/elapi/elapi_internal.c
+++ b/common/elapi/elapi_internal.c
@@ -105,60 +105,19 @@ int elapi_tgt_free_cb(const char *target,
return EOK;
}
-
-
-int elapi_sink_cb(const char *sink,
- int sink_len,
- int type,
- void *data,
- int length,
- void *passed_data,
- int *stop)
-{
- TRACE_FLOW_STRING("elapi_sink_cb", "Entry.");
-
- /* FIXME THIS IS A PLACEHOLDER FUNCTION FOR NOW */
-
- /* Skip header */
- if (type == COL_TYPE_COLLECTION) {
- TRACE_FLOW_STRING("elapi_sink_cb - skip header", "Exit.");
- return EOK;
- }
-
- printf("Sink: %s\n", sink);
-
- TRACE_FLOW_STRING("elapi_sink_cb", "Exit.");
- return EOK;
-}
-
-/* Internal sink cleanup function */
-int elapi_sink_free_cb(const char *sink,
- int sink_len,
- int type,
- void *data,
- int length,
- void *passed_data,
- int *stop)
-{
- TRACE_FLOW_STRING("elapi_sink_free_cb", "Entry.");
-
- /* FIXME THIS IS A PLACEHOLDER FUNCTION FOR NOW */
-
- printf("Cleaning Sink: %s\n", sink);
-
- TRACE_FLOW_STRING("elapi_sink_free_cb", "Exit.");
- return EOK;
-}
-
/* Function to add a sink to the collection */
+/* This function belongs to this module.
+ * It adds sink into the collection
+ * of sinks inside dispatcher and puts
+ * reference into the target's reference list.
+ */
/* FIXME - other arguments might be added later */
int elapi_sink_add(struct collection_item **sink_ref,
char *sink,
struct elapi_dispatcher *handle)
{
int error = EOK;
- struct elapi_sink_ctx sink_context;
- struct collection_item *provider_cfg_item = NULL;
+ struct elapi_sink_ctx *sink_context = NULL;
TRACE_FLOW_STRING("elapi_sink_add", "Entry");
@@ -183,42 +142,36 @@ int elapi_sink_add(struct collection_item **sink_ref,
if (!(*sink_ref)) {
TRACE_FLOW_STRING("No such sink yet, adding new sink:", sink);
- /* First check if this sink is properly configured and get its provider */
- error = get_config_item(sink,
- ELAPI_SINK_PROVIDER,
- handle->ini_config,
- &provider_cfg_item);
- if (error) {
- TRACE_ERROR_NUMBER("Attempt to read provider attribute returned error", error);
+ /* Create a sink object */
+ error = elapi_sink_create(&sink_context, sink, handle->ini_config);
+ if (error != 0) {
+ TRACE_ERROR_NUMBER("Failed to add sink data as property", error);
+ /* If create failed there is nothing to destroy */
return error;
}
- /* Do we have provider? */
- if (provider_cfg_item == NULL) {
- /* There is no provider - return error */
- TRACE_ERROR_STRING("Required key is missing in the configuration.", "Fatal Error!");
- return ENOENT;
+ /* If there was an internal error but sink is optional
+ * no error is returned but context is NULL.
+ * We need to check for this situation.
+ */
+ if (sink_context) {
+ TRACE_FLOW_STRING("Loaded sink:", sink);
+ /* We got a valid sink so add it to the collection */
+ error = col_add_binary_property_with_ref(handle->sink_list,
+ NULL,
+ sink,
+ (void *)(&sink_context),
+ sizeof(struct elapi_sink_ctx *),
+ sink_ref);
+ if (error != 0) {
+ TRACE_ERROR_NUMBER("Failed to add sink data as property", error);
+ elapi_sink_destroy(sink_context);
+ return error;
+ }
}
-
-
- /* FIXME: PLACEHOLDER
- * This is the area where the actual sink is loaded.
- * CODE WILL BE ADDED HERE...
- */
- sink_context.async_mode = 0;
- sink_context.in_queue = NULL;
- sink_context.pending = NULL;
-
- /* We got a valid sink so add it to the collection */
- error = col_add_binary_property_with_ref(handle->sink_list,
- NULL,
- sink,
- (void *)(&sink_context),
- sizeof(struct elapi_sink_ctx),
- sink_ref);
- if (error != 0) {
- TRACE_ERROR_NUMBER("Failed to add sink data as property", error);
- return error;
+ else {
+ *sink_ref = NULL;
+ TRACE_FLOW_STRING("Setting sink reference to NULL", "");
}
}
@@ -258,6 +211,7 @@ int elapi_tgt_create(struct elapi_tgt_ctx **context,
char **sinks;
char **current_sink;
struct collection_item *sink_ref;
+ unsigned count;
TRACE_FLOW_STRING("elapi_tgt_create", "Entry.");
@@ -281,7 +235,7 @@ int elapi_tgt_create(struct elapi_tgt_ctx **context,
/* Allocate context */
target_context = (struct elapi_tgt_ctx *)malloc(sizeof(struct elapi_tgt_ctx));
if (target_context == NULL) {
- TRACE_ERROR_NUMBER("Memory allocation failed. Error", target_context);
+ TRACE_ERROR_NUMBER("Memory allocation failed. Error", ENOMEM);
return ENOMEM;
}
@@ -362,22 +316,45 @@ int elapi_tgt_create(struct elapi_tgt_ctx **context,
return error;
}
- /* Add reference to it into the target object */
- error = col_add_binary_property(target_context->sink_ref_list, NULL,
- *current_sink, (void *)(&sink_ref),
- sizeof(struct collection_item *));
- if (error != 0) {
- TRACE_ERROR_NUMBER("Failed to add sink reference", error);
- elapi_tgt_destroy(target_context);
- free_string_config_array(sinks);
- return error;
+ /* It might be that is was an error wit the optional sink so
+ * we need to check if the reference is not NULL;
+ */
+ if (sink_ref) {
+ /* Add reference to it into the target object */
+ error = col_add_binary_property(target_context->sink_ref_list, NULL,
+ *current_sink, (void *)(&sink_ref),
+ sizeof(struct collection_item *));
+ if (error != 0) {
+ TRACE_ERROR_NUMBER("Failed to add sink reference", error);
+ elapi_tgt_destroy(target_context);
+ free_string_config_array(sinks);
+ return error;
+ }
+ }
+ else {
+ TRACE_INFO_STRING("Sink reference is NULL.", "Skipping the sink");
}
-
current_sink++;
}
free_string_config_array(sinks);
+ /* Get count of the references in the list */
+ error = col_get_collection_count(target_context->sink_ref_list, &count);
+ if (error) {
+ TRACE_ERROR_NUMBER("Failed to get count", error);
+ elapi_tgt_destroy(target_context);
+ return error;
+ }
+
+ /* Check count */
+ if (count <= 1) {
+ /* Nothing but header? - Bad! */
+ TRACE_ERROR_NUMBER("No sinks loaded for target!", "This is a fatal error!");
+ elapi_tgt_destroy(target_context);
+ return ENOENT;
+ }
+
*context = target_context;
TRACE_FLOW_STRING("elapi_tgt_create", "Exit.");
@@ -503,6 +480,54 @@ void elapi_dump_ini_err(struct collection_item *error_list)
TRACE_FLOW_STRING("elapi_dump_ini_err", "Exit");
}
+/****************************************************************************/
+/* Functions below are added for debugging purposes */
+/****************************************************************************/
+#ifdef ELAPI_UTEST
+
+void elapi_print_sink_ctx(struct elapi_sink_ctx *sink_context)
+{
+ /* This will not print well on 64 bit but it is just debugging
+ * so it is OK to have it.
+ */
+ printf("Printing sink context using address %X\n", (uint32_t)(sink_context));
+
+ printf("Mode: %s\n", sink_context->async_mode ? "true" : "false");
+ if (sink_context->in_queue) col_print_collection(sink_context->in_queue);
+ else printf("Queue is not initialized.\n");
+
+ if (sink_context->pending) col_print_collection(sink_context->pending);
+ else printf("Pending list is not initialized.\n");
+
+ if (sink_context->sink_cfg.provider) printf("Provider: %s\n",
+ sink_context->sink_cfg.provider);
+ else printf("Provider is not defined.\n");
+
+ printf("Is provider required? %s\n", ((sink_context->sink_cfg.required > 0) ? "Yes" : "No"));
+ printf("On error: %s\n", ((sink_context->sink_cfg.onerror == 0) ? "retry" : "fail"));
+ printf("Timout: %d\n", sink_context->sink_cfg.timeout);
+ printf("Sync configuration: %s\n", sink_context->sink_cfg.synch ? "true" : "false");
+
+ if (sink_context->sink_cfg.priv_ctx) printf("Private context allocated.\n");
+ else printf("Private context is NULL.\n");
+
+ if (sink_context->sink_cfg.libhandle) printf("Lib handle is allocated.\n");
+ else printf("Lib handle is NULL.\n");
+
+ if (sink_context->sink_cfg.ability) printf("Capability function is present\n");
+ else printf("NO capability function.\n");
+
+ if (sink_context->sink_cfg.cpb_cb.init_cb) printf("Init callback is OK.\n");
+ else printf("Init callback is missing.\n");
+
+ if (sink_context->sink_cfg.cpb_cb.submit_cb) printf("Submit callback is OK.\n");
+ else printf("Submit callback is missing.\n");
+
+ if (sink_context->sink_cfg.cpb_cb.close_cb) printf("Close callback is OK.\n");
+ else printf("Close callback is missing.\n");
+
+
+}
/* Handler for printing target internals */
static int elapi_sink_ref_dbg_cb(const char *sink,
@@ -525,19 +550,38 @@ static int elapi_sink_ref_dbg_cb(const char *sink,
printf("\nReferenced sink name is: %s\n", col_get_item_property(sink_item, NULL));
- sink_context = (struct elapi_sink_ctx *)(col_get_item_data(sink_item));
+ sink_context = *((struct elapi_sink_ctx **)(col_get_item_data(sink_item)));
- printf("Mode: %s\n", sink_context->async_mode ? "true" : "false");
- if (sink_context->in_queue) col_print_collection(sink_context->in_queue);
- else printf("Queue is not initialized.\n");
+ elapi_print_sink_ctx(sink_context);
- if (sink_context->pending) col_print_collection(sink_context->pending);
- else printf("Pending list is not initialized.\n");
return EOK;
}
+/* Handler for printing sink internals */
+static int elapi_sink_dbg_cb(const char *sink,
+ int sink_len,
+ int type,
+ void *data,
+ int length,
+ void *passed_data,
+ int *stop)
+{
+ struct elapi_sink_ctx *sink_context;
+ /* Skip header */
+ if (type == COL_TYPE_COLLECTION) {
+ return EOK;
+ }
+
+ sink_context = *((struct elapi_sink_ctx **)(data));
+
+ printf("\nSink name is: %s\n", sink);
+
+ elapi_print_sink_ctx(sink_context);
+
+ return EOK;
+}
/* Handler for printing target internals */
static int elapi_tgt_dbg_cb(const char *target,
@@ -569,6 +613,7 @@ static int elapi_tgt_dbg_cb(const char *target,
}
+
/* Internal function to print dispatcher internals - useful for testing */
void elapi_print_dispatcher(struct elapi_dispatcher *handle)
{
@@ -604,7 +649,17 @@ void elapi_print_dispatcher(struct elapi_dispatcher *handle)
elapi_tgt_dbg_cb,
NULL);
}
+ printf("\n\nDeep sink inspection:\n\n");
+ if (handle->sink_list) {
+ (void)col_traverse_collection(handle->sink_list,
+ COL_TRAVERSE_ONELEVEL,
+ elapi_sink_dbg_cb,
+ NULL);
+ }
/* FIXME: Async data... */
printf("DISPATCHER END\n\n");
+ fflush(stdout);
}
+
+#endif
diff --git a/common/elapi/elapi_priv.h b/common/elapi/elapi_priv.h
index eb1d11f8b..4b55f9648 100644
--- a/common/elapi/elapi_priv.h
+++ b/common/elapi/elapi_priv.h
@@ -24,6 +24,8 @@
#include "collection.h"
#include "elapi_async.h"
+#include "elapi_sink.h"
+
/* Classes of the collections used by ELAPI internally */
#define COL_CLASS_ELAPI_BASE 21000
#define COL_CLASS_ELAPI_EVENT COL_CLASS_ELAPI_BASE + 0
@@ -45,6 +47,28 @@
#define ELAPI_SINK_REFS "srefs"
#define ELAPI_TARGET_VALUE "value"
#define ELAPI_SINK_PROVIDER "provider"
+#define ELAPI_SINK_REQUIRED "required"
+#define ELAPI_SINK_ONERROR "onerror"
+#define ELAPI_SINK_TIMEOUT "timeout"
+#define ELAPI_SINK_SYNCH "synch"
+
+/* Default timout before dispatcher tries to revive sink.
+ * The actual value is configurable on per sink basis
+ * so I do not see a value in making this a compile time
+ * option (at least at the moment).
+ */
+#define ELAPI_SINK_DEFAULT_TIMEOUT 60
+
+/* Names of embedded providers */
+#define ELAPI_EMB_PRVDR_FILE "file"
+#define ELAPI_EMB_PRVDR_STDERR "stderr"
+#define ELAPI_EMB_PRVDR_SYSLOG "syslog"
+
+/* Numbers for embedded providers */
+#define ELAPI_EMB_PRVDR_FILENUM 0
+#define ELAPI_EMB_PRVDR_STDERRNUM 1
+#define ELAPI_EMB_PRVDR_SYSLOGNUM 2
+
#define ELAPI_TARGET_ALL 0xFFFF /* 65k targets should be enough */
@@ -96,21 +120,47 @@ struct elapi_tgt_ctx {
*/
};
+/* FIXME: Compbine with context */
+struct sink_status {
+ int suspended;
+ time_t lasttry;
+};
+
+/* Common configuration items for all sinks */
+struct elapi_sink_cfg {
+ char *provider;
+ uint32_t required;
+ uint32_t onerror;
+ uint32_t timeout;
+ uint32_t synch;
+ void *priv_ctx;
+ void *libhandle;
+ sink_cpb_fn ability;
+ struct sink_cpb cpb_cb;
+};
+
/* The structure that describes the sink in the dispatcher */
struct elapi_sink_ctx {
- /* Inpit queue of a sink */
+ /* Input queue of a sink */
struct collection_item *in_queue;
/* Pending list */
struct collection_item *pending;
/* FIXME: add:
* sink's error status
- * sink's common config data (common between all sinks)
- * sink personal specific config data (config data specific to this sink)
*/
- /* Is this a sink or async sink */
uint32_t async_mode;
+ /* Sink configuration data */
+ struct elapi_sink_cfg sink_cfg;
+};
+
+/* Generic data structure for the data output */
+struct elapi_data_out {
+ char *buffer;
+ size_t size;
+ size_t written;
};
+
/* The structure to hold a command and a result of the command execution */
struct elapi_get_sink {
int action;
@@ -153,6 +203,14 @@ int elapi_sink_add(struct collection_item **sink_ref,
char *sink,
struct elapi_dispatcher *handle);
+/* Function to create a sink */
+int elapi_sink_create(struct elapi_sink_ctx **sink_ctx,
+ char *name,
+ struct collection_item *ini_config);
+
+/* Destroy sink */
+void elapi_sink_destroy(struct elapi_sink_ctx *context);
+
/* Create target object */
int elapi_tgt_create(struct elapi_tgt_ctx **context,
char *target,
@@ -185,8 +243,12 @@ int elapi_tgt_mklist(struct elapi_dispatcher *handle);
/* Send ELAPI config errors into a file */
void elapi_dump_ini_err(struct collection_item *error_list);
-/* Print dispatcher internals for testing and debugin purposes */
+#ifdef ELAPI_UTEST
+/* Print dispatcher internals for testing and debugging purposes */
void elapi_print_dispatcher(struct elapi_dispatcher *handle);
+/* Print sink context details */
+void elapi_print_sink_ctx(struct elapi_sink_ctx *sink_context);
+#endif
#endif
diff --git a/common/elapi/elapi_sink.c b/common/elapi/elapi_sink.c
new file mode 100644
index 000000000..3908c3adf
--- /dev/null
+++ b/common/elapi/elapi_sink.c
@@ -0,0 +1,500 @@
+/*
+ ELAPI
+
+ Module that contains functions that manipulate ELAPI sinks.
+
+ Copyright (C) Dmitri Pal <dpal@redhat.com> 2009
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#define _GNU_SOURCE
+#include <sys/types.h> /* for stat() */
+#include <errno.h> /* for errors */
+#include <string.h> /* for memset() and other */
+#include <stdlib.h> /* for free() */
+#include <stdarg.h> /* for va_arg */
+#include <dlfcn.h> /* for dlopen() */
+
+#include "elapi_priv.h"
+#include "ini_config.h"
+#include "file_provider.h"
+#include "trace.h"
+#include "config.h"
+
+/* NOTE: Add new provider names here */
+const char *providers[] = { ELAPI_EMB_PRVDR_FILE,
+ ELAPI_EMB_PRVDR_STDERR,
+ ELAPI_EMB_PRVDR_SYSLOG,
+ NULL };
+
+
+/* This is a traverse callback for sink list */
+int elapi_sink_cb(const char *sink,
+ int sink_len,
+ int type,
+ void *data,
+ int length,
+ void *passed_data,
+ int *stop)
+{
+ TRACE_FLOW_STRING("elapi_sink_cb", "Entry.");
+
+ /* FIXME THIS IS A PLACEHOLDER FUNCTION FOR NOW */
+
+ /* Skip header */
+ if (type == COL_TYPE_COLLECTION) {
+ TRACE_FLOW_STRING("elapi_sink_cb - skip header", "Exit.");
+ return EOK;
+ }
+
+ printf("Sink: %s\n", sink);
+
+ TRACE_FLOW_STRING("elapi_sink_cb", "Exit.");
+ return EOK;
+}
+
+/* Destroy sink */
+void elapi_sink_destroy(struct elapi_sink_ctx *context)
+{
+ TRACE_FLOW_STRING("elapi_sink_destroy", "Entry.");
+
+#ifdef ELAPI_UTEST
+ /* FIXME: Can be removeed when the interface is stable */
+ /* For testing purposes print the context we are trying to free */
+ elapi_print_sink_ctx(context);
+#endif
+
+ if (context) {
+ TRACE_INFO_STRING("Context is not null.", "Destroying sink.");
+ /* FIXME: Do something about pending data if any */
+ /* Assume for now that we do not care about pending data */
+
+ /* If the private data has been allocated and close callback is there
+ * call a callback to clean the data and free it.
+ */
+ if (context->sink_cfg.priv_ctx) {
+ TRACE_INFO_STRING("Calling provider's close function.", "");
+ /* Call close function of the provider */
+ context->sink_cfg.cpb_cb.close_cb(&(context->sink_cfg.priv_ctx));
+ }
+
+ /* Now if the handle of the provider is set, offload the library instance */
+ if (context->sink_cfg.libhandle) {
+ TRACE_INFO_STRING("Offloading shared library.", "");
+ dlclose(context->sink_cfg.libhandle);
+ context->sink_cfg.libhandle = NULL;
+ }
+
+ if (context->sink_cfg.provider) {
+ TRACE_INFO_STRING("Cleaning provider.", "");
+ free(context->sink_cfg.provider);
+ context->sink_cfg.provider = NULL;
+ }
+
+ TRACE_INFO_STRING("Freeing context", "");
+ free(context);
+ }
+
+ TRACE_FLOW_STRING("elapi_sink_destroy", "Exit.");
+}
+
+/* Internal sink cleanup function */
+int elapi_sink_free_cb(const char *sink,
+ int sink_len,
+ int type,
+ void *data,
+ int length,
+ void *passed_data,
+ int *stop)
+{
+ TRACE_FLOW_STRING("elapi_sink_free_cb", "Entry.");
+
+ /* Skip header */
+ if (type == COL_TYPE_COLLECTION) {
+ TRACE_FLOW_STRING("elapi_sink_free_cb - skip header", "Exit.");
+ return EOK;
+ }
+
+ TRACE_INFO_STRING("Cleaning Sink:", sink);
+
+ elapi_sink_destroy(*((struct elapi_sink_ctx **)(data)));
+
+ TRACE_FLOW_STRING("elapi_sink_free_cb", "Exit.");
+ return EOK;
+}
+
+/* Function to read sink common configuration */
+static int elapi_read_sink_cfg(struct elapi_sink_cfg *sink_cfg,
+ char *name,
+ struct collection_item *ini_config)
+{
+ int error = EOK;
+ struct collection_item *cfg_item = NULL;
+ const char *provider;
+
+ TRACE_FLOW_STRING("elapi_read_sink_cfg", "Entry point");
+
+ /*********** Provider *************/
+
+ /* First check if this sink is properly configured and get its provider */
+ error = get_config_item(name,
+ ELAPI_SINK_PROVIDER,
+ ini_config,
+ &cfg_item);
+ if (error) {
+ TRACE_ERROR_NUMBER("Attempt to read \"provider\" attribute returned error", error);
+ return error;
+ }
+
+ /* Do we have provider? */
+ if (cfg_item == NULL) {
+ /* There is no provider - return error */
+ TRACE_ERROR_STRING("Required key is missing in the configuration.", "Fatal Error!");
+ return ENOENT;
+ }
+
+ /* Get provider value */
+ provider = get_const_string_config_value(cfg_item, &error);
+ if ((error) || (!provider)) {
+ TRACE_ERROR_STRING("Invalid \"provider\" value", "Fatal Error!");
+ return EINVAL;
+ }
+
+ /* Save provider inside configuration data */
+ sink_cfg->provider = strdup(provider);
+ if (sink_cfg->provider == NULL) {
+ /* Failed to save the provider value */
+ TRACE_ERROR_STRING("Failed to save \"provider\" value.", "Fatal Error!");
+ return ENOMEM;
+ }
+
+ /*********** Required *************/
+ /* Next is "required" field */
+ cfg_item = NULL;
+ error = get_config_item(name,
+ ELAPI_SINK_REQUIRED,
+ ini_config,
+ &cfg_item);
+ if (error) {
+ TRACE_ERROR_NUMBER("Attempt to read \"required\" attribute returned error", error);
+ return error;
+ }
+
+ /* Do we have "required"? */
+ if (cfg_item == NULL) {
+ /* There is no attribute - assume default */
+ TRACE_INFO_STRING("No \"required\" attribute.", "Assume optional");
+ sink_cfg->required = 0;
+ }
+ else {
+ sink_cfg->required = (uint32_t) get_bool_config_value(cfg_item, '\0', &error);
+ if (error) {
+ TRACE_ERROR_STRING("Invalid \"required\" value", "Fatal Error!");
+ return EINVAL;
+ }
+ }
+
+ /*********** Onerror *************/
+ /* Next is "onerror" field */
+ cfg_item = NULL;
+ error = get_config_item(name,
+ ELAPI_SINK_ONERROR,
+ ini_config,
+ &cfg_item);
+ if (error) {
+ TRACE_ERROR_NUMBER("Attempt to read \"onerror\" attribute returned error", error);
+ return error;
+ }
+
+ /* Do we have "required"? */
+ if (cfg_item == NULL) {
+ /* There is no attribute - assume default */
+ TRACE_INFO_STRING("No \"onerror\" attribute.", "Assume retry (0)");
+ sink_cfg->onerror = 0;
+ }
+ else {
+ sink_cfg->onerror = (uint32_t) get_unsigned_config_value(cfg_item, 1, 0, &error);
+ if (error) {
+ TRACE_ERROR_STRING("Invalid \"onerror\" value", "Fatal Error!");
+ return EINVAL;
+ }
+ }
+
+ /*********** Timeout *************/
+ /* Next is "timeout" field */
+ cfg_item = NULL;
+ error = get_config_item(name,
+ ELAPI_SINK_TIMEOUT,
+ ini_config,
+ &cfg_item);
+ if (error) {
+ TRACE_ERROR_NUMBER("Attempt to read \"timeout\" attribute returned error", error);
+ return error;
+ }
+
+ /* Do we have "required"? */
+ if (cfg_item == NULL) {
+ /* There is no attribute - assume default */
+ TRACE_INFO_STRING("No \"timeout\" attribute.", "Assume default timeout");
+ sink_cfg->timeout = ELAPI_SINK_DEFAULT_TIMEOUT;
+ }
+ else {
+ sink_cfg->timeout = (uint32_t) get_unsigned_config_value(cfg_item,
+ 1,
+ ELAPI_SINK_DEFAULT_TIMEOUT,
+ &error);
+ if (error) {
+ TRACE_ERROR_STRING("Invalid \"timeout\" value", "Fatal Error!");
+ return EINVAL;
+ }
+ }
+
+ /*********** Synch *************/
+ /* Next is "synch" field */
+ cfg_item = NULL;
+ error = get_config_item(name,
+ ELAPI_SINK_SYNCH,
+ ini_config,
+ &cfg_item);
+ if (error) {
+ TRACE_ERROR_NUMBER("Attempt to read \"synch\" attribute returned error", error);
+ return error;
+ }
+
+ /* Do we have "required"? */
+ if (cfg_item == NULL) {
+ /* There is no attribute - assume default */
+ TRACE_INFO_STRING("No \"synch\" attribute.", "Assume retry (0)");
+ sink_cfg->synch = 0;
+ }
+ else {
+ sink_cfg->synch = (uint32_t) get_bool_config_value(cfg_item, '\0', &error);
+ if (error) {
+ TRACE_ERROR_STRING("Invalid \"synch\" value", "Fatal Error!");
+ return EINVAL;
+ }
+ }
+
+ TRACE_FLOW_STRING("elapi_read_sink_cfg", "Exit");
+ return error;
+}
+
+/* Function to load external sink library */
+static int elapi_load_lib(void **libhandle, sink_cpb_fn *sink_fn, char *name)
+{
+ char sink_lib_name[SINK_LIB_NAME_SIZE];
+ sink_cpb_fn sink_symbol = NULL;
+ void *handle = NULL;
+ char *lib_error = NULL;
+
+ TRACE_FLOW_STRING("elapi_load_lib", "Entry point");
+
+ if ((strlen(name) + sizeof(SINK_NAME_TEMPLATE)) >= SINK_LIB_NAME_SIZE) {
+ TRACE_ERROR_STRING("Provider string is too long:", name);
+ return EINVAL;
+ }
+
+ sprintf(sink_lib_name, SINK_NAME_TEMPLATE, name);
+ TRACE_INFO_STRING("Name of the library to try to load:", sink_lib_name);
+
+ /* Load library */
+ handle = dlopen(sink_lib_name, RTLD_LAZY);
+ if (!handle) {
+ TRACE_ERROR_STRING("Dlopen returned error", dlerror());
+ return ELIBACC;
+ }
+
+ /* Clear any existing error */
+ dlerror();
+ /* Get addres to the main entry point */
+ sink_symbol = (sink_cpb_fn)(dlsym(handle, SINK_ENTRY_POINT));
+ if ((lib_error = dlerror()) != NULL) {
+ TRACE_ERROR_STRING("Dlsym returned error", lib_error);
+ dlclose(handle);
+ return ELIBACC;
+ }
+
+ *libhandle = handle;
+ *sink_fn = sink_symbol;
+
+ TRACE_FLOW_STRING("elapi_load_lib", "Exit");
+ return EOK;
+}
+
+/* Function to load sink provider */
+int elapi_sink_loader(struct elapi_sink_cfg *sink_cfg)
+{
+ int error = EOK;
+ int num = 0;
+
+ TRACE_FLOW_STRING("elapi_sink_loader", "Entry point");
+
+ while (providers[num]) {
+ TRACE_INFO_STRING("Checking provider:", providers[num]);
+ if (strcasecmp(providers[num], sink_cfg->provider) == 0) break;
+ num++;
+ }
+
+ TRACE_INFO_NUMBER("Provider number:", num);
+
+ /* NOTE: Add provider handler into the switch below */
+ switch (num) {
+ case ELAPI_EMB_PRVDR_FILENUM:
+ TRACE_INFO_STRING("Using \"file\" provider:", "");
+ sink_cfg->ability = file_ability;
+ break;
+/* FIXME: Not implemented yet
+ case ELAPI_EMB_PRVDR_STDERRNUM:
+ TRACE_INFO_STRING("Using \"stderr\" provider:", "");
+ sink_cfg->ability = stderr_ability;
+ break;
+ case ELAPI_EMB_PRVDR_SYSLOGNUM:
+ TRACE_INFO_STRING("Using \"syslog\" provider:", "");
+ sink_cfg->ability = syslog_ability;
+ break;
+*/
+ default:
+ /* It is an external provider */
+ error = elapi_load_lib(&(sink_cfg->libhandle), &(sink_cfg->ability), sink_cfg->provider);
+ if (error) {
+ TRACE_ERROR_NUMBER("Failed to load library", error);
+ return error;
+ }
+ break;
+ }
+
+ TRACE_FLOW_STRING("elapi_sink_loader", "Exit");
+ return error;
+}
+
+
+/* Function to load sink provider */
+int elapi_load_sink(struct elapi_sink_cfg *sink_cfg,
+ char *name,
+ struct collection_item *ini_config)
+{
+ int error = EOK;
+ TRACE_FLOW_STRING("elapi_load_sink", "Entry point");
+
+ /* Use sink loading wrapper */
+ error = elapi_sink_loader(sink_cfg);
+ if (error) {
+ TRACE_ERROR_NUMBER("Failed to load sink", error);
+ return error;
+ }
+
+ /* Call ability function to fill in the pointers */
+ sink_cfg->ability(&(sink_cfg->cpb_cb));
+
+ /* Make sure the callbacks are initialized */
+ if ((sink_cfg->cpb_cb.init_cb == NULL) ||
+ (sink_cfg->cpb_cb.submit_cb == NULL) ||
+ (sink_cfg->cpb_cb.close_cb == NULL)) {
+ TRACE_ERROR_NUMBER("One of the callbacks is missing",
+ "Bad provider!");
+ return EINVAL;
+ }
+
+
+ /* Call init entry point */
+ /* NOTE: it is the responsibility of the provider
+ * to enforce singleton in case provider can't
+ * be loaded more than once like syslog for example.
+ */
+ error = sink_cfg->cpb_cb.init_cb(&(sink_cfg->priv_ctx),
+ name,
+ ini_config);
+ if (error) {
+ TRACE_ERROR_NUMBER("Failed to initalize sink", error);
+ return error;
+ }
+
+ TRACE_FLOW_STRING("elapi_load_sink", "Exit");
+ return error;
+
+}
+
+/* Function to create a sink */
+int elapi_sink_create(struct elapi_sink_ctx **sink_ctx,
+ char *name,
+ struct collection_item *ini_config)
+{
+ int error = EOK;
+ uint32_t required;
+ struct elapi_sink_ctx *sink_context = NULL;
+
+ TRACE_FLOW_STRING("elapi_sink_create", "Entry point");
+
+ /* Allocate context */
+ sink_context = (struct elapi_sink_ctx *)malloc(sizeof(struct elapi_sink_ctx));
+ if (sink_context == NULL) {
+ TRACE_ERROR_NUMBER("Memory allocation failed. Error", ENOMEM);
+ return ENOMEM;
+ }
+
+ /* Initialize the allocatable items so that we can call destroy function
+ * in case of error.
+ * FIXME - add initialization here for other elements as they are added.
+ */
+
+ sink_context->async_mode = 0;
+ sink_context->in_queue = NULL;
+ sink_context->pending = NULL;
+ sink_context->sink_cfg.provider = NULL;
+ sink_context->sink_cfg.priv_ctx = NULL;
+ sink_context->sink_cfg.libhandle = NULL;
+ sink_context->sink_cfg.ability = NULL;
+ sink_context->sink_cfg.cpb_cb.init_cb = NULL;
+ sink_context->sink_cfg.cpb_cb.submit_cb = NULL;
+ sink_context->sink_cfg.cpb_cb.close_cb = NULL;
+
+ /* Read common fields */
+ error = elapi_read_sink_cfg(&(sink_context->sink_cfg),
+ name, ini_config);
+ if (error) {
+ TRACE_ERROR_NUMBER("Failed to read sink configuration", error);
+ elapi_sink_destroy(sink_context);
+ return error;
+ }
+
+ TRACE_INFO_NUMBER("Address of init function",
+ sink_context->sink_cfg.cpb_cb.init_cb);
+ TRACE_INFO_NUMBER("Address of submit function",
+ sink_context->sink_cfg.cpb_cb.submit_cb);
+ TRACE_INFO_NUMBER("Address of close function",
+ sink_context->sink_cfg.cpb_cb.close_cb);
+
+ /* Load sink */
+ error = elapi_load_sink(&(sink_context->sink_cfg),
+ name, ini_config);
+ if (error) {
+ TRACE_ERROR_NUMBER("Failed to load sink", error);
+ required = sink_context->sink_cfg.required;
+ elapi_sink_destroy(sink_context);
+ if (required) {
+ TRACE_ERROR_NUMBER("Sink is required so returning error", error);
+ return error;
+ }
+ else {
+ *sink_ctx = NULL;
+ TRACE_FLOW_STRING("Sink is not required so OK", "Exit");
+ return EOK;
+ }
+ }
+
+ /* We are done so return the context to the caller */
+ *sink_ctx = sink_context;
+
+ TRACE_FLOW_STRING("elapi_sink_create", "Exit");
+ return error;
+}
diff --git a/common/elapi/elapi_sink.h b/common/elapi/elapi_sink.h
index 40b12a266..41a89896f 100644
--- a/common/elapi/elapi_sink.h
+++ b/common/elapi/elapi_sink.h
@@ -31,48 +31,29 @@
#define SINK_LIB_NAME_SIZE 100
#define SINK_ENTRY_POINT "get_sink_info"
#define SINK_NAME_TEMPLATE "libelapi_sink_%s.so"
-#define SINK_NEVER_RETRY -1
/* Flags related to loading sinks */
#define SINK_FLAG_NO_LIMIT 0x00000000 /* NO limits to loading and manipulating this sink - default */
-#define SINK_FLAG_LOAD_SINGLE 0x00000001 /* Only allow one instance of the sink per process */
+#define SINK_FLAG_LOAD_SINGLE 0x00000001 /* Only allow one instance of the provider per process */
-struct data_descriptor {
- char *appname;
- void *config;
- void *internal_data;
-};
/* Log facility callbacks */
-typedef int (*init_fn)(struct data_descriptor *dblock);
-typedef void (*cleanup_fn)(struct data_descriptor *dblock);
-typedef int (*format_fn)(struct data_descriptor *dblock, const char *format_str, struct collection_item *event);
-typedef int (*submit_fn)(struct data_descriptor *dblock);
-typedef void (*close_fn)(struct data_descriptor *dblock);
+/* FIXME - the signatures need to take into the account async processing */
+typedef int (*init_fn)(void **priv_ctx, char *name, struct collection_item *ini_config);
+typedef int (*submit_fn)(void *priv_ctx, struct collection_item *event);
+typedef void (*close_fn)(void **priv_ctx);
-struct sink_capability {
- int retry_interval;
- int flags;
- int instance;
+struct sink_cpb {
init_fn init_cb;
- cleanup_fn cleanup_cb;
- format_fn format_cb;
submit_fn submit_cb;
close_fn close_cb;
};
-/* The only open function the link can expose */
-typedef void (*capability_fn)(struct sink_capability *sink_cpb_block);
+/* The only open function the sink can expose */
+typedef void (*sink_cpb_fn)(struct sink_cpb *sink_cpb_block);
-struct sink_descriptor {
- struct sink_capability sink_cpb_block;
- struct data_descriptor dblock;
- int suspended;
- time_t lasttry;
- void *lib_handle;
-};
-/*Standard capability function */
-void get_sink_info(struct sink_capability *sink_cpb_block);
+/* Standard capability function */
+void get_sink_info(struct sink_cpb *cpb_block);
#endif
diff --git a/common/elapi/elapi_test/Makefile.am b/common/elapi/elapi_test/Makefile.am
index b16102c83..cac0ead6d 100644
--- a/common/elapi/elapi_test/Makefile.am
+++ b/common/elapi/elapi_test/Makefile.am
@@ -5,7 +5,8 @@ topdir=$(srcdir)/../..
AM_CFLAGS = -DELAPI_DEFAULT_CONFIG_DIR=\"$(srcdir)\" \
-DELAPI_DEFAULT_CONFIG_APP_DIR=\"$(srcdir)\" \
-DELAPI_DEFAULT_APP_NAME=\"elapi_ut\" \
- -DELAPI_DEFAULT_APP_NAME_SIZE=127
+ -DELAPI_DEFAULT_APP_NAME_SIZE=127 \
+ -DELAPI_UTEST
if HAVE_GCC
AM_CFLAGS += \
@@ -13,26 +14,31 @@ if HAVE_GCC
-Wcast-align -Wwrite-strings
endif
-AM_CPPFLAGS = -I$(topdir) -I$(topdir)/ini -I$(topdir)/trace -I$(topdir)/collection -I$(topdir)/elapi $(TRACE_LEVEL)
+AM_CPPFLAGS = -I$(topdir) -I$(topdir)/ini -I$(topdir)/trace -I$(topdir)/collection -I$(topdir)/elapi \
+ -I$(topdir)/elapi/providers/file $(TRACE_LEVEL)
ACLOCAL_AMFLAGS = -I m4
# Build library
noinst_LTLIBRARIES = libelapi_test.la
+
libelapi_test_la_SOURCES = \
../elapi_event.c \
../elapi_log.c \
../elapi_internal.c \
+ ../elapi_sink.c \
../elapi_event.h \
../elapi_priv.h \
../elapi_sink.h \
../elapi_log.h \
../elapi_async.h \
- ../elapi.h
+ ../elapi.h \
+ ../providers/file/file_provider.c \
+ ../providers/file/file_provider.h
# Build unit test
check_PROGRAMS = elapi_ut
elapi_ut_SOURCES = elapi_ut.c
-elapi_ut_LDADD = libelapi_test.la ../../ini/libini_config.la ../../collection/libcollection.la
+elapi_ut_LDADD = libelapi_test.la ../../ini/libini_config.la ../../collection/libcollection.la -ldl
TESTS = elapi_ut
diff --git a/common/elapi/elapi_test/elapi_ut.conf b/common/elapi/elapi_test/elapi_ut.conf
index d15a4550d..a5ad7a0b2 100644
--- a/common/elapi/elapi_test/elapi_ut.conf
+++ b/common/elapi/elapi_test/elapi_ut.conf
@@ -79,19 +79,44 @@ sinks = logfile, syslog
; In this case the ELAPI will try to load shared library with the name
; constructed using specified value. In the given example
; ELAPI will try to load libelapi_sink_custom_audit.so library.
-; The general pattern is: libelapi_sink_<source>.so
+; The general pattern is: libelapi_sink_<provider>.so
+;
+; required - (optional)
+; Defines whether it is a required sink?
+; If not present the dispatcher will return error at load time.
+;
+; onerror - if the sink got an error what should dispatcher do?
+; 0 - retry (default)
+; 1 - disable
+;
+; timeout - for how long one should wait before trying to revive the sink
+; default is 60 seconds
+;
+; synch - yes/no (default no) - a flag that forces the sink to act synchronously
+; even if it can support async operations
[debugfile]
provider=file
+required=true
+onerror=1
+timeout=90
[logfile]
provider=file
+required=true
+onerror=0
+timeout=60
[auditfile]
provider=file
+required=true
+onerror=1
+timeout=90
[stderr]
provider=stderr
+synch=false
[syslog]
provider=syslog
+synch=yes
diff --git a/common/elapi/providers/file/file_provider.c b/common/elapi/providers/file/file_provider.c
new file mode 100644
index 000000000..589ed5eb7
--- /dev/null
+++ b/common/elapi/providers/file/file_provider.c
@@ -0,0 +1,155 @@
+/*
+ ELAPI
+
+ Module implements a provider for sinks based on file.
+
+ Copyright (C) Dmitri Pal <dpal@redhat.com> 2009
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#define _GNU_SOURCE
+#include <errno.h> /* for errors */
+#include <stdlib.h> /* for free() */
+
+#include "file_provider.h"
+#include "ini_config.h"
+#include "trace.h"
+#include "config.h"
+/* FIXME: temporary for debugging */
+#include "collection_tools.h"
+
+
+/* Function to read configuration */
+int file_read_cfg(struct file_prvdr_cfg *file_cfg,
+ char *name,
+ struct collection_item *ini_config)
+{
+ int error = EOK;
+ TRACE_FLOW_STRING("file_read_cfg", "Entry point");
+
+ /* FIXME: read configuration items */
+
+ TRACE_FLOW_STRING("file_read_cfg", "Exit");
+ return error;
+}
+
+
+/* Function to create context */
+int file_create_ctx(struct file_prvdr_ctx **file_ctx,
+ char *name,
+ struct collection_item *ini_config)
+{
+ int error = EOK;
+ struct file_prvdr_ctx *ctx = NULL;
+
+ TRACE_FLOW_STRING("file_create_ctx", "Entry point");
+
+ ctx = (struct file_prvdr_ctx *)malloc(sizeof(struct file_prvdr_ctx));
+ if (ctx == NULL) {
+ TRACE_ERROR_NUMBER("Failed to allocate context", ENOMEM);
+ return ENOMEM;
+ }
+
+ /* Init allocatable items */
+ ctx->config.filename = NULL;
+
+ /* Read configuration data */
+ error = file_read_cfg(&(ctx->config), name, ini_config);
+ if (error) {
+ TRACE_ERROR_NUMBER("Error reading sink configuration", error);
+ free(ctx);
+ return error;
+ }
+
+ *file_ctx = ctx;
+
+ TRACE_FLOW_STRING("file_create_ctx", "Exit");
+ return error;
+}
+
+
+/* File init function */
+int file_init(void **priv_ctx,
+ char *name,
+ struct collection_item *ini_config)
+{
+ int error = EOK;
+ TRACE_FLOW_STRING("file_init", "Entry point");
+
+ /* Start with creating context */
+ error = file_create_ctx((struct file_prvdr_ctx **)priv_ctx,
+ name,
+ ini_config);
+ if (error) {
+ TRACE_ERROR_NUMBER("Failed to create context", error);
+ return error;
+ }
+
+ /* Open file */
+ /* FIXME: ... */
+
+ TRACE_FLOW_STRING("file_init", "Exit");
+ return error;
+}
+
+/* File close function */
+void file_close(void **priv_ctx)
+{
+ struct file_prvdr_ctx **ctx = NULL;
+
+ TRACE_FLOW_STRING("file_close", "Entry point");
+
+ ctx = (struct file_prvdr_ctx **)priv_ctx;
+
+ /* Close file */
+ /* FIXME: ... */
+
+ /* If we allocated file name free it */
+ if ((*ctx)->config.filename != NULL) {
+ TRACE_INFO_STRING("Freeing file name", (*ctx)->config.filename);
+ free((*ctx)->config.filename);
+ }
+
+ /* Free and indicate that the context is freed */
+ free(*ctx);
+ *ctx = NULL;
+
+ TRACE_FLOW_STRING("file_close", "Exit");
+}
+
+/* File submit function */
+int file_submit(void *priv_ctx, struct collection_item *event)
+{
+ int error = EOK;
+ TRACE_FLOW_STRING("file_submit", "Entry point");
+
+
+ /* FIXME: Placeholder for now */
+ col_print_collection(event);
+
+ TRACE_FLOW_STRING("file_sumbit", "Exit");
+ return error;
+}
+
+
+/* This is the equivalent of the get info function */
+void file_ability(struct sink_cpb *cpb_block)
+{
+ TRACE_FLOW_STRING("file_ability", "Entry point");
+
+ cpb_block->init_cb = file_init;
+ cpb_block->submit_cb = file_submit;
+ cpb_block->close_cb = file_close;
+
+ TRACE_FLOW_STRING("file_ability", "Exit");
+}
diff --git a/common/elapi/providers/file/file_provider.h b/common/elapi/providers/file/file_provider.h
new file mode 100644
index 000000000..218f69f58
--- /dev/null
+++ b/common/elapi/providers/file/file_provider.h
@@ -0,0 +1,79 @@
+/*
+ ELAPI
+
+ Header file used internally by the "file" provider.
+
+ Copyright (C) Dmitri Pal <dpal@redhat.com> 2009
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef ELAPI_FILE_PROVIDER_H
+#define ELAPI_FILE_PROVIDER_H
+
+#include <stdint.h>
+
+#include "elapi_sink.h"
+
+/* Structure that holds internal configuration of the file
+ * provider.
+ */
+struct file_prvdr_cfg {
+ char *filename; /* File name */
+ uint32_t keepopen; /* Do we need to keep file open */
+ uint32_t fsyncmode; /* How frequently data is fsynced */
+ uint32_t outmode; /* Output mode */
+ struct collection_item *set; /* Field set without leftovers symbol */
+ uint32_t use_leftovers; /* Was there a leftover symbol */
+ uint32_t jam_leftovers; /* leftovers should be serialized into one field */
+ uint32_t mode_leftovers; /* Format for the leftover fields */
+ uint32_t csvheader; /* Include csv header or not? */
+ char csvqualifier; /* What is the qualifier? */
+ char csvseparator; /* What is the separator? */
+ uint32_t csvescape; /* Do we need to escape strings ? */
+ char csvescchar; /* What is the escape character? */
+};
+
+/* File context */
+struct file_prvdr_ctx {
+ struct file_prvdr_cfg config; /* Configuration */
+ int outfile; /* File handle */
+ /* FIXME - other things go here */
+};
+
+
+
+/* Function to read configuration */
+int file_read_cfg(struct file_prvdr_cfg *file_cfg,
+ char *name,
+ struct collection_item *ini_config);
+
+/* Function to create context */
+int file_create_ctx(struct file_prvdr_ctx **file_ctx,
+ char *name,
+ struct collection_item *ini_config);
+
+/* File init function */
+int file_init(void **priv_ctx,
+ char *name,
+ struct collection_item *ini_config);
+
+/* File close function */
+void file_close(void **priv_ctx);
+
+/* File submit function */
+int file_submit(void *priv_ctx, struct collection_item *event);
+
+/* This is the equivalent of the get info function */
+void file_ability(struct sink_cpb *cpb_block);
+
+#endif
generated by cgit (git 2.34.1) at 2024-04-16 20:22:35 +0000