diff options
Diffstat (limited to 'runtime/print.c')
| -rw-r--r-- | runtime/print.c | 40 |
1 files changed, 37 insertions, 3 deletions
diff --git a/runtime/print.c b/runtime/print.c index e7e97d27..3c09e105 100644 --- a/runtime/print.c +++ b/runtime/print.c @@ -2,12 +2,14 @@ #define _PRINT_C_ #include <linux/config.h> - +#include "string.h" #include "io.c" /** @file print.c - * @addtogroup print Print Buffer - * Print Buffer Functions. + * Printing Functions. + */ + +/** @addtogroup print Print Functions * The print buffer is for collecting output to send to the user daemon. * This is a per-cpu static buffer. The buffer is sent when * _stp_print_flush() is called. @@ -127,6 +129,38 @@ void _stp_print_flush (void) */ #define _stp_print_string(str) _stp_string_cat_string(_stp_stdout,str) +/* This function is used when printing maps or stats. */ +/* Probably belongs elsewhere, but is here for now. */ +/* It takes a format specification like those used for */ +/* printing maps and stats. It prints chars until it sees */ +/* a special format char (beginning with '%'. Then it */ +/* returns a pointer to that. */ +static char *next_fmt(char *fmt, int *num) +{ + char *f = fmt; + int in_fmt = 0; + dbug ("next_fmt %s\n", fmt); + *num = 0; + while (*f) { + if (in_fmt) { + if (*f == '%') { + _stp_string_cat_char(_stp_stdout,'%'); + in_fmt = 0; + } else if (*f > '0' && *f <= '9') { + *num = *f - '0'; + f++; + return f; + } else + return f; + } else if (*f == '%') + in_fmt = 1; + else + _stp_string_cat_char(_stp_stdout,*f); + f++; + } + return f; +} + /** Write a String or C string into the print buffer. * This macro selects the proper function to call. * @param str A String or C string (char *) |