NeoMutt  2022-04-29-81-g9c5a59
Teaching an old dog new tricks
mutt_logging.c File Reference

NeoMutt Logging. More...

#include "config.h"
#include <errno.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include "mutt/lib.h"
#include "config/lib.h"
#include "core/lib.h"
#include "gui/lib.h"
#include "mutt_logging.h"
#include "color/lib.h"
#include "mutt_globals.h"
#include "muttlib.h"
#include "options.h"
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Go to the source code of this file.


#define S_TO_MS   1000L


static void error_pause (void)
 Wait for an error message to be read. More...
void mutt_clear_error (void)
 Clear the message line (bottom line of screen) More...
int log_disp_curses (time_t stamp, const char *file, int line, const char *function, enum LogLevel level,...)
 Display a log line in the message line - Implements log_dispatcher_t -. More...
void mutt_log_prep (void)
 Prepare to log. More...
void mutt_log_stop (void)
 Close the log file. More...
int mutt_log_set_file (const char *file)
 Change the logging file. More...
int mutt_log_set_level (enum LogLevel level, bool verbose)
 Change the logging level. More...
int mutt_log_start (void)
 Enable file logging. More...
int level_validator (const struct ConfigSet *cs, const struct ConfigDef *cdef, intptr_t value, struct Buffer *err)
 Validate the "debug_level" config variable - Implements ConfigDef::validator() -. More...
int main_log_observer (struct NotifyCallback *nc)
 Notification that a Config Variable has changed - Implements observer_t -. More...


uint64_t LastError = 0
 Time of the last error message (in milliseconds since the Unix epoch) More...
char * CurrentFile = NULL
 The previous log file name. More...
const int NumOfLogs = 5
 How many log files to rotate. More...

Detailed Description

NeoMutt Logging.

  • Richard Russon

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see

Definition in file mutt_logging.c.

Macro Definition Documentation


#define S_TO_MS   1000L

Definition at line 52 of file mutt_logging.c.

Function Documentation

◆ error_pause()

static void error_pause ( void  )

Wait for an error message to be read.

If '$sleep_time' seconds hasn't elapsed since LastError, then wait

Definition at line 59 of file mutt_logging.c.

60 {
61  const short c_sleep_time = cs_subset_number(NeoMutt->sub, "sleep_time");
62  const uint64_t elapsed = mutt_date_epoch_ms() - LastError;
63  const uint64_t sleep = c_sleep_time * S_TO_MS;
64  if ((LastError == 0) || (elapsed >= sleep))
65  return;
67  mutt_refresh();
68  mutt_date_sleep_ms(sleep - elapsed);
69 }
void mutt_refresh(void)
Force a refresh of the screen.
Definition: curs_lib.c:156
void mutt_date_sleep_ms(size_t ms)
Sleep for milliseconds.
Definition: date.c:704
uint64_t mutt_date_epoch_ms(void)
Return the number of milliseconds since the Unix epoch.
Definition: date.c:436
short cs_subset_number(const struct ConfigSubset *sub, const char *name)
Get a number config item by name.
Definition: helpers.c:169
uint64_t LastError
Time of the last error message (in milliseconds since the Unix epoch)
Definition: mutt_logging.c:47
#define S_TO_MS
Definition: mutt_logging.c:52
Container for Accounts, Notifications.
Definition: neomutt.h:37
struct ConfigSubset * sub
Inherited config items.
Definition: neomutt.h:39
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◆ mutt_clear_error()

void mutt_clear_error ( void  )

Clear the message line (bottom line of screen)

Definition at line 74 of file mutt_logging.c.

75 {
76  /* Make sure the error message has had time to be read */
77  if (OptMsgErr)
78  error_pause();
80  ErrorBufMessage = false;
81  if (!OptNoCurses)
83 }
void msgwin_clear_text(void)
Clear the text in the Message Window.
Definition: msgwin.c:248
bool ErrorBufMessage
true if the last message was an error
Definition: mutt_globals.h:46
static void error_pause(void)
Wait for an error message to be read.
Definition: mutt_logging.c:59
bool OptNoCurses
(pseudo) when sending in batch mode
Definition: options.h:53
bool OptMsgErr
(pseudo) used by mutt_error/mutt_message
Definition: options.h:46
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◆ mutt_log_prep()

void mutt_log_prep ( void  )

Prepare to log.

Definition at line 174 of file mutt_logging.c.

175 {
176  char ver[64];
177  snprintf(ver, sizeof(ver), "-%s%s", PACKAGE_VERSION, GitVer);
179 }
void log_file_set_version(const char *version)
Set the program's version number.
Definition: logging.c:220
const char * GitVer
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◆ mutt_log_stop()

void mutt_log_stop ( void  )

Close the log file.

Definition at line 184 of file mutt_logging.c.

185 {
186  log_file_close(false);
187  FREE(&CurrentFile);
188 }
void log_file_close(bool verbose)
Close the log file.
Definition: logging.c:98
#define FREE(x)
Definition: memory.h:40
char * CurrentFile
The previous log file name.
Definition: mutt_logging.c:49
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◆ mutt_log_set_file()

int mutt_log_set_file ( const char *  file)

Change the logging file.

fileName to use
Return values
0Success, file opened
-1Error, see errno

Close the old log, rotate the new logs and open the new log.

Definition at line 198 of file mutt_logging.c.

199 {
200  const char *const c_debug_file = cs_subset_path(NeoMutt->sub, "debug_file");
201  if (!mutt_str_equal(CurrentFile, c_debug_file))
202  {
203  struct Buffer *expanded = mutt_buffer_pool_get();
204  mutt_buffer_addstr(expanded, c_debug_file);
205  mutt_buffer_expand_path(expanded);
207  const char *name = mutt_file_rotate(mutt_buffer_string(expanded), NumOfLogs);
208  mutt_buffer_pool_release(&expanded);
209  if (!name)
210  return -1;
212  log_file_set_filename(name, false);
213  FREE(&name);
214  mutt_str_replace(&CurrentFile, c_debug_file);
215  }
217  cs_subset_str_string_set(NeoMutt->sub, "debug_file", file, NULL);
219  return 0;
220 }
size_t mutt_buffer_addstr(struct Buffer *buf, const char *s)
Add a string to a Buffer.
Definition: buffer.c:225
static const char * mutt_buffer_string(const struct Buffer *buf)
Convert a buffer to a const char * "string".
Definition: buffer.h:77
const char * mutt_file_rotate(const char *path, int count)
Rotate a set of numbered files.
Definition: file.c:519
const char * cs_subset_path(const struct ConfigSubset *sub, const char *name)
Get a path config item by name.
Definition: helpers.c:194
int log_file_set_filename(const char *file, bool verbose)
Set the filename for the log.
Definition: logging.c:149
bool mutt_str_equal(const char *a, const char *b)
Compare two strings.
Definition: string.c:784
char * mutt_str_replace(char **p, const char *s)
Replace one string with another.
Definition: string.c:326
const int NumOfLogs
How many log files to rotate.
Definition: mutt_logging.c:50
void mutt_buffer_expand_path(struct Buffer *buf)
Create the canonical path.
Definition: muttlib.c:321
void mutt_buffer_pool_release(struct Buffer **pbuf)
Free a Buffer from the pool.
Definition: pool.c:112
struct Buffer * mutt_buffer_pool_get(void)
Get a Buffer from the pool.
Definition: pool.c:101
String manipulation buffer.
Definition: buffer.h:34
int cs_subset_str_string_set(const struct ConfigSubset *sub, const char *name, const char *value, struct Buffer *err)
Set a config item by string.
Definition: subset.c:408
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◆ mutt_log_set_level()

int mutt_log_set_level ( enum LogLevel  level,
bool  verbose 

Change the logging level.

levelLogging level
verboseIf true, then log the event
Return values
-1Error, level is out of range

Definition at line 229 of file mutt_logging.c.

230 {
231  if (!CurrentFile)
232  {
233  const char *const c_debug_file = cs_subset_path(NeoMutt->sub, "debug_file");
234  mutt_log_set_file(c_debug_file);
235  }
237  if (log_file_set_level(level, verbose) != 0)
238  return -1;
240  cs_subset_str_native_set(NeoMutt->sub, "debug_level", level, NULL);
241  return 0;
242 }
int log_file_set_level(enum LogLevel level, bool verbose)
Set the logging level.
Definition: logging.c:175
int mutt_log_set_file(const char *file)
Change the logging file.
Definition: mutt_logging.c:198
int cs_subset_str_native_set(const struct ConfigSubset *sub, const char *name, intptr_t value, struct Buffer *err)
Natively set the value of a string config item.
Definition: subset.c:305
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◆ mutt_log_start()

int mutt_log_start ( void  )

Enable file logging.

Return values
0Success, or already running
-1Failed to start

This also handles file rotation.

Definition at line 251 of file mutt_logging.c.

252 {
253  const short c_debug_level = cs_subset_number(NeoMutt->sub, "debug_level");
254  if (c_debug_level < 1)
255  return 0;
257  if (log_file_running())
258  return 0;
260  const char *const c_debug_file = cs_subset_path(NeoMutt->sub, "debug_file");
261  mutt_log_set_file(c_debug_file);
263  /* This will trigger the file creation */
264  if (log_file_set_level(c_debug_level, true) < 0)
265  return -1;
267  return 0;
268 }
bool log_file_running(void)
Is the log file running?
Definition: logging.c:229
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Variable Documentation

◆ LastError

uint64_t LastError = 0

Time of the last error message (in milliseconds since the Unix epoch)

Definition at line 47 of file mutt_logging.c.

◆ CurrentFile

char* CurrentFile = NULL

The previous log file name.

Definition at line 49 of file mutt_logging.c.

◆ NumOfLogs

const int NumOfLogs = 5

How many log files to rotate.

Definition at line 50 of file mutt_logging.c.