Upstream's 0.0.16v0.0.16upstream

1 files changed, 198 insertions, 0 deletions

diff --git a/progress.c b/progress.c
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+/* $Header: /home/ksheff/src/e2tools/RCS/progress.c,v 0.1 2002/06/26 11:17:28 ksheff Exp $ */
+/*
+ * progress.c
+ *
+ * Copyright (C) 2002 Keith W Sheffield.  This file may be redistributed
+ * under the terms of the GNU Public License.
+ *
+ */
+
+#ifndef PROGRESS_C
+#define PROGRESS_C
+#endif
+
+/* Description */
+/*
+ *
+ *
+ */
+/*
+ * $Log: progress.c,v $
+ * Revision 0.1  2002/06/26 11:17:28  ksheff
+ * Initial revision
+ *
+ */
+
+/* Feature Test Switches */
+/* System Headers */
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+
+/* Macros */
+#define PROG_FILE_SIZE 50
+#define PROG_CLEAR \
+"                                                                           \r"
+/* Local Variables */
+
+static char prog_file[PROG_FILE_SIZE+1];
+static struct stat *prog_sbuf = NULL;
+static long prog_start;
+static long prog_time;
+
+/* Name:	init_progress()
+ *
+ * Description:
+ *
+ * This function initializes the progress status variables for a particular
+ * file operation
+ * .
+ *
+ * Algorithm:
+ *
+ * Determine the size of the file name
+ * Copy the last PROG_FILE_SIZE characters of the filename
+ * Copy the pointer to the file statistics structure
+ *
+ * Global Variables:
+ *
+ * char prog_file[PROG_FILE_SIZE+1];        The file being operated on
+ * struct stat *prog_sbuf;                  prog_file's information
+ * long prog_start;                          The initial start time
+ * long prog_time;                          The last update time
+ *
+ * Arguments:
+ *
+ * char *file;                The file to watch
+ * struct stat *sbuf;         The file's information
+ *
+ * Return Values:
+ *
+ * None
+ *
+ * Author: Keith W. Sheffield
+ * Date:   06/26/2002
+ *
+ * Modification History:
+ *
+ * MM/DD/YY      Name               Description
+ *
+ */
+void init_progress(char *file, struct stat *sbuf)
+{
+  int len;
+  struct timeval tv;
+
+  if (file != NULL && sbuf != NULL)
+    {
+      if (strcmp(file, "-") == 0)
+        file = "<stdin>";
+      
+      len = strlen(file);
+      if (len > PROG_FILE_SIZE)
+        {
+          file += (len - PROG_FILE_SIZE);
+          len = PROG_FILE_SIZE;
+        }
+      memset(prog_file, ' ', PROG_FILE_SIZE);
+      memcpy(prog_file, file, len);
+      prog_file[PROG_FILE_SIZE] = '\0';
+      prog_sbuf = sbuf;
+      gettimeofday(&tv, NULL);
+      prog_start = prog_time = tv.tv_sec;
+    }
+  else
+    {
+      prog_file[0] = '\0';
+      prog_sbuf = NULL;
+      prog_start = prog_time = 0;
+    }
+  
+} /* end of init_progress */ 
+
+/* Name:	update_progress()
+ *
+ * Description:
+ *
+ * This function updates the current file progress display.
+ *
+ * Algorithm:
+ *
+ * Get the system time in seconds.
+ * If different from the last update
+ *     Save the system time
+ *     Display the file name, current byte total, and total file size
+ *
+ * Global Variables:
+ *
+ * char prog_file[PROG_FILE_SIZE+1];        The file being operated on
+ * struct stat *prog_sbuf;                  prog_file's information
+ * long prog_time;                          The last update time
+ *
+ * Arguments:
+ *
+ * unsigned long num_bytes;          The number of bytes transferred
+ *
+ * Return Values:
+ *
+ * None
+ *
+ * Author: Keith W. Sheffield
+ * Date:   06/26/2002
+ *
+ * Modification History:
+ *
+ * MM/DD/YY      Name               Description
+ *
+ */
+void update_progress(unsigned long num_bytes)
+{
+  struct timeval tv;
+  gettimeofday(&tv, NULL);
+
+  if (prog_sbuf != NULL && prog_time != tv.tv_sec)
+    {
+      prog_time = tv.tv_sec;
+      fprintf(stderr, "%s %10d / %10d\r", prog_file, num_bytes,
+              prog_sbuf->st_size);
+      fflush(stderr);
+    }
+} /* end of update_progress */ 
+
+/* Name:	finish_progress()
+ *
+ * Description:
+ *
+ * This function clears the current progress line if needed.
+ *
+ * Algorithm:
+ *
+ * Check to see if prog_start is different than prog_time
+ *     Clear the progress line
+ *
+ * Global Variables:
+ *
+ *
+ * Arguments:
+ *
+ * None
+ *
+ * Return Values:
+ *
+ * None
+ *
+ * Author: Keith W. Sheffield
+ * Date:   06/26/2002
+ *
+ * Modification History:
+ *
+ * MM/DD/YY      Name               Description
+ *
+ */
+void finish_progress()
+{
+  if (prog_start != prog_time)
+    fputs(PROG_CLEAR, stderr);
+  
+} /* end of finish_progress */