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/* notmuch - Not much of an email program, (just index and search)
*
* Copyright © 2010 David Bremner
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* 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 http://www.gnu.org/licenses/ .
*
* Author: David Bremner <david@tethera.net>
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <time.h>
#include <talloc.h>
#include "notmuch-client.h"
/*
Look a key up in the config file; open the corresponding file as a
log.
Return a file descriptor to the open log file, or -1 if an error
occurs.
*/
int
notmuch_log_open (const char *path)
{
int fd;
fd = open (path, O_CREAT|O_WRONLY|O_APPEND);
if (fd < 0) {
fprintf (stderr, "Failed to open %s: %s\n",
path, strerror (errno));
}
return fd;
}
notmuch_status_t
notmuch_log_append (int file_desc, const char *buffer, size_t len){
struct flock lock;
lock.l_type = F_WRLCK;
lock.l_whence = SEEK_SET;
lock.l_start = 0;
lock.l_len = 0;
if (fcntl (file_desc, F_SETLKW, &lock) != 0) {
fprintf (stderr, "Failed to lock %s\n",
strerror (errno));
return NOTMUCH_STATUS_FILE_ERROR;
}
while (len > 0)
{
int written;
written = write(file_desc, buffer, len);
if (written < 0 || (written == 0 && errno !=0))
{
fprintf (stderr, "Failed to write %zd characters: %s\n",
len, strerror (errno));
return NOTMUCH_STATUS_FILE_ERROR;
}
len -= written;
buffer += written;
}
if (fdatasync (file_desc) != 0) {
fprintf (stderr, "Failed to sync: %s\n",
strerror (errno));
return NOTMUCH_STATUS_FILE_ERROR;
}
lock.l_type=F_UNLCK;
if (fcntl (file_desc, F_SETLK, &lock) != 0) {
fprintf (stderr, "Failed to unlock: %s\n",
strerror (errno));
return NOTMUCH_STATUS_FILE_ERROR;
}
return NOTMUCH_STATUS_SUCCESS;
}
notmuch_status_t
notmuch_log_string_pair(void *ctx, int log_fd,
const char *string1, const char *string2){
char *quoted1, *quoted2, *buffer;
quoted1 = json_quote_str (ctx, string1);
quoted2 = json_quote_str (ctx, string2);
buffer = talloc_asprintf (ctx, "%ld %s %s\n",
(long)time(NULL),
quoted1, quoted2);
return notmuch_log_append (log_fd, buffer, strlen(buffer));
}
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