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Merge commit '7fb23041a52d01754c53ba963e2282e524813364' into thread-next

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Maria Matejka
2023-01-23 19:46:26 +01:00
parent 4821612c94 7fb23041a5
commit 758aabd96c
10 changed files with 114 additions and 9 deletions
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22
sysdep/unix/log.c
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@@ -32,6 +32,7 @@
#include "lib/lists.h"
#include "sysdep/unix/unix.h"
static int dbg_fd = -1;
static FILE *dbgf;
static list *current_log_list;
static char *current_syslog_name; /* NULL -> syslog closed */
@@ -341,6 +342,21 @@ debug(const char *msg, ...)
va_end(args);
}
/**
* debug_safe - async-safe write to debug output
* @msg: a string message
*
* This function prints the message @msg to the debugging output in a
* way that is async safe and can be used in signal handlers. No newline
* character is appended.
*/
void
debug_safe(const char *msg)
{
if (dbg_fd >= 0)
write(dbg_fd, msg, strlen(msg));
}
static list *
default_log_list(int initial, const char **syslog_name)
{
@@ -441,8 +457,10 @@ log_init_debug(char *f)
{
clock_gettime(CLOCK_MONOTONIC, &dbg_time_start);
dbg_fd = -1;
if (dbgf && dbgf != stderr)
fclose(dbgf);
if (!f)
dbgf = NULL;
else if (!*f)
@@ -453,6 +471,10 @@ log_init_debug(char *f)
fprintf(stderr, "bird: Unable to open debug file %s: %s\n", f, strerror(errno));
exit(1);
}
if (dbgf)
{
setvbuf(dbgf, NULL, _IONBF, 0);
dbg_fd = fileno(dbgf);
}
}