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freetdm: improve state debug dumping

This commit is contained in:
Moises Silva 2010-09-23 07:38:58 -04:00
parent ed01944c15
commit 640b81a27c
1 changed files with 30 additions and 24 deletions
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54
libs/freetdm/src/ftdm_io.c
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@ -5224,49 +5224,55 @@ FT_DECLARE(char *) ftdm_strndup(const char *str, ftdm_size_t inlen)
}
#define FTDM_DEBUG_LINE_LEN 255
#define handle_snprintf_result(buff, written, len, debugstr) \
if (written >= len) { \
ftdm_free(debugstr); \
return NULL; \
} \
len -= written; \
buff += written;
FT_DECLARE(char *) ftdm_channel_get_history_str(const ftdm_channel_t *fchan)
{
uint8_t j = 0;
char func[255];
char line[255];
char states[255];
int written = 0;
char *buff = NULL;
uint8_t i = fchan->hindex;
uint8_t i = 0;
int dbglen = ftdm_array_len(fchan->history) * FTDM_DEBUG_LINE_LEN;
int len = dbglen;
if (!fchan->history[0].file) {
return ftdm_strdup("-- No state history --\n");
}
char *debugstr = ftdm_calloc(1, dbglen);
if (!debugstr) {
return NULL;
}
buff = debugstr;
written = snprintf(buff, len, "%-30.30s %-30.30s %s", "-- States --", "-- Function --", "-- Location --\n");
handle_snprintf_result(buff, written, len, debugstr);
for (i = fchan->hindex; i < ftdm_array_len(fchan->history); i++) {
if (!fchan->history[i].file) {
break;
}
written = snprintf(buff, len, "%s -> %s at %s %s:%d\n",
ftdm_channel_state2str(fchan->history[i].last_state), ftdm_channel_state2str(fchan->history[i].state), fchan->history[i].func,
fchan->history[i].file, fchan->history[i].line);
if (written >= len) {
ftdm_free(debugstr);
ftdm_log(FTDM_LOG_ERROR, "Not enough memory to build debug history string\n");
return NULL;
}
len -= written;
buff += written;
snprintf(states, sizeof(states), "%-5.15s => %-5.15s", ftdm_channel_state2str(fchan->history[i].last_state), ftdm_channel_state2str(fchan->history[i].state));
snprintf(func, sizeof(func), "[%s]", fchan->history[i].func);
snprintf(line, sizeof(func), "[%s:%d]", fchan->history[i].file, fchan->history[i].line);
written = snprintf(buff, len, "%-30.30s %-30.30s %s\n", states, func, line);
handle_snprintf_result(buff, written, len, debugstr);
}
for (j = 0; j < fchan->hindex; j++) {
written = snprintf(buff, len, "%s -> %s at %s %s:%d\n",
ftdm_channel_state2str(fchan->history[i].last_state), ftdm_channel_state2str(fchan->history[i].state), fchan->history[i].func,
fchan->history[i].file, fchan->history[i].line);
if (written >= len) {
ftdm_free(debugstr);
ftdm_log(FTDM_LOG_ERROR, "Not enough memory to build debug history string\n");
return NULL;
}
len -= written;
buff += written;
for (i = 0; i < fchan->hindex; i++) {
snprintf(states, sizeof(states), "%-5.15s => %-5.15s", ftdm_channel_state2str(fchan->history[i].last_state), ftdm_channel_state2str(fchan->history[i].state));
snprintf(func, sizeof(func), "[%s]", fchan->history[i].func);
snprintf(line, sizeof(func), "[%s:%d]", fchan->history[i].file, fchan->history[i].line);
written = snprintf(buff, len, "%-30.30s %-30.30s %s\n", states, func, line);
handle_snprintf_result(buff, written, len, debugstr);
}
debugstr[dbglen-1] = 0;