Function

GLiblog_writer_journald

since: 2.50

Declaration

GLogWriterOutput
g_log_writer_journald (
  GLogLevelFlags log_level,
  const GLogField* fields,
  gsize n_fields,
  gpointer user_data
)

Description

Format a structured log message and send it to the systemd journal as a set of key–value pairs. All fields are sent to the journal, but if a field has length zero (indicating program-specific data) then only its key will be sent.

This is suitable for use as a GLogWriterFunc.

If GLib has been compiled without systemd support, this function is still defined, but will always return G_LOG_WRITER_UNHANDLED.

Available since: 2.50

Parameters

log_level

Type: GLogLevelFlags

Log level, either from GLogLevelFlags, or a user-defined level.

fields

Type: An array of GLogField

Key–value pairs of structured data forming the log message.

The length of the array is specified in the n_fields argument.

The data is owned by the caller of the function.

n_fields

Type: gsize

Number of elements in the fields array.

user_data

Type: gpointer

User data passed to g_log_set_writer_func()

The argument can be NULL.

The data is owned by the caller of the function.

Return value

Type: GLogWriterOutput

G_LOG_WRITER_HANDLED on success, G_LOG_WRITER_UNHANDLED otherwise.