diff options
Diffstat (limited to 'upstream/debian-unstable/man3/sd_journal_stream_fd.3')
| -rw-r--r-- | upstream/debian-unstable/man3/sd_journal_stream_fd.3 | 43 |
1 files changed, 27 insertions, 16 deletions
diff --git a/upstream/debian-unstable/man3/sd_journal_stream_fd.3 b/upstream/debian-unstable/man3/sd_journal_stream_fd.3 index f505e221..8642d2ef 100644 --- a/upstream/debian-unstable/man3/sd_journal_stream_fd.3 +++ b/upstream/debian-unstable/man3/sd_journal_stream_fd.3 @@ -1,5 +1,5 @@ '\" t -.TH "SD_JOURNAL_STREAM_FD" "3" "" "systemd 255" "sd_journal_stream_fd" +.TH "SD_JOURNAL_STREAM_FD" "3" "" "systemd 256~rc3" "sd_journal_stream_fd" .\" ----------------------------------------------------------------- .\" * Define some portability stuff .\" ----------------------------------------------------------------- @@ -20,7 +20,7 @@ .\" * MAIN CONTENT STARTS HERE * .\" ----------------------------------------------------------------- .SH "NAME" -sd_journal_stream_fd \- Create log stream file descriptor to the journal +sd_journal_stream_fd, sd_journal_stream_fd_with_namespace \- Create log stream file descriptor to the journal .SH "SYNOPSIS" .sp .ft B @@ -30,6 +30,8 @@ sd_journal_stream_fd \- Create log stream file descriptor to the journal .ft .HP \w'int\ sd_journal_stream_fd('u .BI "int sd_journal_stream_fd(const\ char\ *" "identifier" ", int\ " "priority" ", int\ " "level_prefix" ");" +.HP \w'int\ sd_journal_stream_fd_with_namespace('u +.BI "int sd_journal_stream_fd_with_namespace(const\ char\ *" "name_space" ", const\ char\ *" "identifier" ", int\ " "priority" ", int\ " "level_prefix" ");" .SH "DESCRIPTION" .PP \fBsd_journal_stream_fd()\fR @@ -54,11 +56,19 @@ for details\&. The third argument is a boolean: if true kernel\-style log level \fBsd-daemon\fR(3) for more information\&. .PP +\fBsd_journal_stream_fd_with_namespace()\fR +is similar to +\fBsd_journal_stream_fd()\fR, but takes an additional +\fIname_space\fR +parameter that specifies which journal namespace to operate on\&. If specified as +\fBNULL\fR +the call is identical to +\fBsd_journal_stream_fd()\fR\&. For details about journal namespaces, see +\fBsystemd-journald.service\fR(8)\&. +.PP It is recommended that applications log UTF\-8 messages only with this API, but this is not enforced\&. .PP -Each invocation of -\fBsd_journal_stream_fd()\fR -allocates a new log stream file descriptor, that is not shared with prior or later invocations\&. The file descriptor is write\-only (its reading direction is shut down), and +Each invocation of these functions allocates a new log stream file descriptor, that is not shared with prior or later invocations\&. The file descriptor is write\-only (its reading direction is shut down), and \fBO_NONBLOCK\fR is turned off initially\&. .SH "RETURN VALUE" @@ -67,7 +77,9 @@ The call returns a valid write\-only file descriptor on success or a negative er .SH "SIGNAL SAFETY" .PP \fBsd_journal_stream_fd()\fR -is "async signal safe" in the meaning of +and +\fBsd_journal_stream_fd_with_namespace()\fR +are "async signal safe" in the meaning of \fBsignal-safety\fR(7)\&. .SH "NOTES" .PP @@ -87,6 +99,7 @@ Creating a log stream suitable for .nf /* SPDX\-License\-Identifier: MIT\-0 */ +#define _GNU_SOURCE 1 #include <errno\&.h> #include <syslog\&.h> #include <stdio\&.h> @@ -97,15 +110,16 @@ Creating a log stream suitable for int main(int argc, char *argv[]) { int fd; FILE *log; + fd = sd_journal_stream_fd("test", LOG_INFO, 1); if (fd < 0) { - errno = \-fd; - fprintf(stderr, "Failed to create stream fd: %m\en"); + fprintf(stderr, "Failed to create stream fd: %s\en", strerror(\-fd)); return 1; } + log = fdopen(fd, "w"); if (!log) { - fprintf(stderr, "Failed to create file object: %m\en"); + fprintf(stderr, "Failed to create file object: %s\en", strerror(errno)); close(fd); return 1; } @@ -122,12 +136,9 @@ int main(int argc, char *argv[]) { .PP \fBsd_journal_stream_fd()\fR was added in version 187\&. +.PP +\fBsd_journal_stream_fd_with_namespace()\fR +was added in version 256\&. .SH "SEE ALSO" .PP -\fBsystemd\fR(1), -\fBsd-journal\fR(3), -\fBsd-daemon\fR(3), -\fBsd_journal_print\fR(3), -\fBsyslog\fR(3), -\fBfprintf\fR(3), -\fBsystemd.journal-fields\fR(7) +\fBsystemd\fR(1), \fBsd-journal\fR(3), \fBsd-daemon\fR(3), \fBsd_journal_print\fR(3), \fBsyslog\fR(3), \fBfprintf\fR(3), \fBsystemd.journal-fields\fR(7) |