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160 lines
4.8 KiB

#include <stdlib.h>
#include <string.h>
#include "libisofs.h"
#include "messages.h"
struct libiso_msgs *libiso_messenger = NULL;
int iso_init()
{
if (libiso_messenger == NULL) {
if (libiso_msgs_new(&libiso_messenger, 0) <= 0)
return 0;
}
libiso_msgs_set_severities(libiso_messenger, LIBISO_MSGS_SEV_NEVER,
LIBISO_MSGS_SEV_FATAL, "libisofs: ", 0);
return 1;
}
void iso_finish()
{
libiso_msgs_destroy(&libiso_messenger,0);
}
void iso_msg_debug(char *msg_text)
{
libiso_msgs_submit(libiso_messenger, -1, 0x00000002,
LIBISO_MSGS_SEV_DEBUG, LIBISO_MSGS_PRIO_ZERO,
msg_text, 0, 0);
}
void iso_msg_note(int error_code, char *msg_text)
{
libiso_msgs_submit(libiso_messenger, -1, error_code,
LIBISO_MSGS_SEV_NOTE, LIBISO_MSGS_PRIO_MEDIUM,
msg_text, 0, 0);
}
void iso_msg_hint(int error_code, char *msg_text)
{
libiso_msgs_submit(libiso_messenger, -1, error_code,
LIBISO_MSGS_SEV_HINT, LIBISO_MSGS_PRIO_MEDIUM,
msg_text, 0, 0);
}
void iso_msg_warn(int error_code, char *msg_text)
{
libiso_msgs_submit(libiso_messenger, -1, error_code,
LIBISO_MSGS_SEV_WARNING, LIBISO_MSGS_PRIO_MEDIUM,
msg_text, 0, 0);
}
void iso_msg_sorry(int error_code, char *msg_text)
{
libiso_msgs_submit(libiso_messenger, -1, error_code,
LIBISO_MSGS_SEV_SORRY, LIBISO_MSGS_PRIO_HIGH,
msg_text, 0, 0);
}
void iso_msg_fatal(int error_code, char *msg_text)
{
libiso_msgs_submit(libiso_messenger, -1, error_code,
LIBISO_MSGS_SEV_FATAL, LIBISO_MSGS_PRIO_HIGH,
msg_text, 0, 0);
}
/**
* Control queueing and stderr printing of messages from libisofs.
* Severity may be one of "NEVER", "FATAL", "SORRY", "WARNING", "HINT",
* "NOTE", "UPDATE", "DEBUG", "ALL".
*
* @param queue_severity Gives the minimum limit for messages to be queued.
* Default: "NEVER". If you queue messages then you
* must consume them by iso_msgs_obtain().
* @param print_severity Does the same for messages to be printed directly
* to stderr.
* @param print_id A text prefix to be printed before the message.
* @return >0 for success, <=0 for error
*/
int iso_msgs_set_severities(char *queue_severity,
char *print_severity, char *print_id)
{
int ret, queue_sevno, print_sevno;
ret = libiso_msgs__text_to_sev(queue_severity, &queue_sevno, 0);
if (ret <= 0)
return 0;
ret = libiso_msgs__text_to_sev(print_severity, &print_sevno, 0);
if (ret <= 0)
return 0;
ret = libiso_msgs_set_severities(libiso_messenger, queue_sevno,
print_sevno, print_id, 0);
if (ret <= 0)
return 0;
return 1;
}
#define ISO_MSGS_MESSAGE_LEN 4096
/**
* Obtain the oldest pending libisofs message from the queue which has at
* least the given minimum_severity. This message and any older message of
* lower severity will get discarded from the queue and is then lost forever.
*
* Severity may be one of "NEVER", "FATAL", "SORRY", "WARNING", "HINT",
* "NOTE", "UPDATE", "DEBUG", "ALL". To call with minimum_severity "NEVER"
* will discard the whole queue.
*
* @param error_code Will become a unique error code as listed in messages.h
* @param msg_text Must provide at least ISO_MSGS_MESSAGE_LEN bytes.
* @param os_errno Will become the eventual errno related to the message
* @param severity Will become the severity related to the message and
* should provide at least 80 bytes.
* @return 1 if a matching item was found, 0 if not, <0 for severe errors
*/
int iso_msgs_obtain(char *minimum_severity,
int *error_code, char msg_text[], int *os_errno,
char severity[])
{
int ret, minimum_sevno, sevno, priority;
char *textpt, *sev_name;
struct libiso_msgs_item *item = NULL;
if (libiso_messenger == NULL)
return 0;
ret = libiso_msgs__text_to_sev(minimum_severity, &minimum_sevno, 0);
if (ret <= 0)
return 0;
ret = libiso_msgs_obtain(libiso_messenger, &item, minimum_sevno,
LIBISO_MSGS_PRIO_ZERO, 0);
if (ret <= 0)
goto ex;
ret = libiso_msgs_item_get_msg(item, error_code, &textpt, os_errno, 0);
if (ret <= 0)
goto ex;
strncpy(msg_text, textpt, ISO_MSGS_MESSAGE_LEN-1);
if(strlen(textpt) >= ISO_MSGS_MESSAGE_LEN)
msg_text[ISO_MSGS_MESSAGE_LEN-1] = 0;
severity[0]= 0;
ret = libiso_msgs_item_get_rank(item, &sevno, &priority, 0);
if(ret <= 0)
goto ex;
ret = libiso_msgs__sev_to_text(sevno, &sev_name, 0);
if(ret <= 0)
goto ex;
strcpy(severity,sev_name);
ret = 1;
ex:
libiso_msgs_destroy_item(libiso_messenger, &item, 0);
return ret;
}
void *iso_get_messenger(void)
{
return libiso_messenger;
}