X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fsystemd%2Fsd-journal.h;h=00237a21589f9d7715aa1117666ba0f281db6368;hp=e319c6e58ccdea83072ffb6533d02dc6c5653170;hb=de33fc625725d199629ed074d6278504deb23deb;hpb=6695ed7a841faad68df3d5cb466f5e0e01f57536

diff --git a/src/systemd/sd-journal.h b/src/systemd/sd-journal.h
index e319c6e58..00237a215 100644
--- a/src/systemd/sd-journal.h
+++ b/src/systemd/sd-journal.h
@@ -31,12 +31,10 @@
 #include "sd-id128.h"
 #include "_sd-common.h"
 
-#ifdef __cplusplus
-extern "C" {
-#endif
-
 /* Journal APIs. See sd-journal(3) for more information. */
 
+_SD_BEGIN_DECLARATIONS;
+
 /* Write to daemon */
 int sd_journal_print(int priority, const char *format, ...) _sd_printf_(2, 3);
 int sd_journal_printv(int priority, const char *format, va_list ap) _sd_printf_(2, 0);
@@ -44,7 +42,7 @@ int sd_journal_send(const char *format, ...) _sd_printf_(1, 0) _sd_sentinel_;
 int sd_journal_sendv(const struct iovec *iov, int n);
 int sd_journal_perror(const char *message);
 
-/* Used by the macros below. Don't call this directly. */
+/* Used by the macros below. You probably don't want to call this directly. */
 int sd_journal_print_with_location(int priority, const char *file, const char *line, const char *func, const char *format, ...) _sd_printf_(5, 6);
 int sd_journal_printv_with_location(int priority, const char *file, const char *line, const char *func, const char *format, va_list ap) _sd_printf_(5, 0);
 int sd_journal_send_with_location(const char *file, const char *line, const char *func, const char *format, ...) _sd_printf_(4, 0) _sd_sentinel_;
@@ -54,11 +52,11 @@ int sd_journal_perror_with_location(const char *file, const char *line, const ch
 /* implicitly add code location to messages sent, if this is enabled */
 #ifndef SD_JOURNAL_SUPPRESS_LOCATION
 
-#define sd_journal_print(priority, ...) sd_journal_print_with_location(priority, "CODE_FILE=" __FILE__, "CODE_LINE=" _sd_stringify(__LINE__), __func__, __VA_ARGS__)
-#define sd_journal_printv(priority, format, ap) sd_journal_printv_with_location(priority, "CODE_FILE=" __FILE__, "CODE_LINE=" _sd_stringify(__LINE__), __func__, format, ap)
-#define sd_journal_send(...) sd_journal_send_with_location("CODE_FILE=" __FILE__, "CODE_LINE=" _sd_stringify(__LINE__), __func__, __VA_ARGS__)
-#define sd_journal_sendv(iovec, n) sd_journal_sendv_with_location("CODE_FILE=" __FILE__, "CODE_LINE=" _sd_stringify(__LINE__), __func__, iovec, n)
-#define sd_journal_perror(message) sd_journal_perror_with_location("CODE_FILE=" __FILE__, "CODE_LINE=" _sd_stringify(__LINE__), __func__, message)
+#define sd_journal_print(priority, ...) sd_journal_print_with_location(priority, "CODE_FILE=" __FILE__, "CODE_LINE=" _SD_STRINGIFY(__LINE__), __func__, __VA_ARGS__)
+#define sd_journal_printv(priority, format, ap) sd_journal_printv_with_location(priority, "CODE_FILE=" __FILE__, "CODE_LINE=" _SD_STRINGIFY(__LINE__), __func__, format, ap)
+#define sd_journal_send(...) sd_journal_send_with_location("CODE_FILE=" __FILE__, "CODE_LINE=" _SD_STRINGIFY(__LINE__), __func__, __VA_ARGS__)
+#define sd_journal_sendv(iovec, n) sd_journal_sendv_with_location("CODE_FILE=" __FILE__, "CODE_LINE=" _SD_STRINGIFY(__LINE__), __func__, iovec, n)
+#define sd_journal_perror(message) sd_journal_perror_with_location("CODE_FILE=" __FILE__, "CODE_LINE=" _SD_STRINGIFY(__LINE__), __func__, message)
 
 #endif
 
@@ -88,6 +86,7 @@ enum {
 int sd_journal_open(sd_journal **ret, int flags);
 int sd_journal_open_directory(sd_journal **ret, const char *path, int flags);
 int sd_journal_open_files(sd_journal **ret, const char **paths, int flags);
+int sd_journal_open_container(sd_journal **ret, const char *machine, int flags);
 void sd_journal_close(sd_journal *j);
 
 int sd_journal_previous(sd_journal *j);
@@ -137,15 +136,17 @@ int sd_journal_wait(sd_journal *j, uint64_t timeout_usec);
 int sd_journal_reliable_fd(sd_journal *j);
 
 int sd_journal_get_catalog(sd_journal *j, char **text);
-int sd_journal_get_catalog_for_message_id(sd_id128_t id, char **ret);
+int sd_journal_get_catalog_for_message_id(sd_id128_t id, char **text);
 
+/* the inverse condition avoids ambiguity of danling 'else' after the macro */
 #define SD_JOURNAL_FOREACH(j)                                           \
-        if (sd_journal_seek_head(j) >= 0)                               \
-                while (sd_journal_next(j) > 0)
+        if (sd_journal_seek_head(j) < 0) { }                            \
+        else while (sd_journal_next(j) > 0)
 
+/* the inverse condition avoids ambiguity of danling 'else' after the macro */
 #define SD_JOURNAL_FOREACH_BACKWARDS(j)                                 \
-        if (sd_journal_seek_tail(j) >= 0)                               \
-                while (sd_journal_previous(j) > 0)
+        if (sd_journal_seek_tail(j) < 0) { }                            \
+        else while (sd_journal_previous(j) > 0)
 
 #define SD_JOURNAL_FOREACH_DATA(j, data, l)                             \
         for (sd_journal_restart_data(j); sd_journal_enumerate_data((j), &(data), &(l)) > 0; )
@@ -153,8 +154,6 @@ int sd_journal_get_catalog_for_message_id(sd_id128_t id, char **ret);
 #define SD_JOURNAL_FOREACH_UNIQUE(j, data, l)                           \
         for (sd_journal_restart_unique(j); sd_journal_enumerate_unique((j), &(data), &(l)) > 0; )
 
-#ifdef __cplusplus
-}
-#endif
+_SD_END_DECLARATIONS;
 
 #endif