[Xen-changelog] [xen-unstable] libxl: Expose libxl_report_exitstatus

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1271090549 -3600
# Node ID e226618aa7156ddf500960a2e8be44220466a981
# Parent  d005aa895b5a051e778fc57d20107e617a8c0b41
libxl: Expose libxl_report_exitstatus

xl would like to use libxl_report_exitstatus, so expose it in
libxl_utils.h to avoid having to write it twice.  Also, give it a
"level" argument to set the loglevel of the resulting message.

Signed-off-by: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
---
 tools/libxl/libxl_exec.c     |   16 +++++++---------
 tools/libxl/libxl_internal.h |    5 -----
 tools/libxl/libxl_utils.h    |   11 +++++++++++
 3 files changed, 18 insertions(+), 14 deletions(-)

diff -r d005aa895b5a -r e226618aa715 tools/libxl/libxl_exec.c
--- a/tools/libxl/libxl_exec.c  Mon Apr 12 17:41:58 2010 +0100
+++ b/tools/libxl/libxl_exec.c  Mon Apr 12 17:42:29 2010 +0100
@@ -57,34 +57,32 @@ void libxl_exec(int stdinfd, int stdoutf
     _exit(-1);
 }
 
-void libxl_report_child_exitstatus(struct libxl_ctx *ctx,
+void libxl_report_child_exitstatus(struct libxl_ctx *ctx, int level,
                                    const char *what, pid_t pid, int status)
 {
-    /* treats all exit statuses as errors; if that's not what you want,
-     * check status yourself first */
 
     if (WIFEXITED(status)) {
         int st = WEXITSTATUS(status);
         if (st)
-            XL_LOG(ctx, XL_LOG_ERROR, "%s [%ld] exited"
+            XL_LOG(ctx, level, "%s [%ld] exited"
                    " with error status %d", what, (unsigned long)pid, st);
         else
-            XL_LOG(ctx, XL_LOG_ERROR, "%s [%ld] unexpectedly"
+            XL_LOG(ctx, level, "%s [%ld] unexpectedly"
                    " exited status zero", what, (unsigned long)pid);
     } else if (WIFSIGNALED(status)) {
         int sig = WTERMSIG(status);
         const char *str = strsignal(sig);
         const char *coredump = WCOREDUMP(status) ? " (core dumped)" : "";
         if (str)
-            XL_LOG(ctx, XL_LOG_ERROR, "%s [%ld] died due to"
+            XL_LOG(ctx, level, "%s [%ld] died due to"
                    " fatal signal %s%s", what, (unsigned long)pid,
                    str, coredump);
         else
-            XL_LOG(ctx, XL_LOG_ERROR, "%s [%ld] died due to unknown"
+            XL_LOG(ctx, level, "%s [%ld] died due to unknown"
                    " fatal signal number %d%s", what, (unsigned long)pid,
                    sig, coredump);
     } else {
-        XL_LOG(ctx, XL_LOG_ERROR, "%s [%ld] gave unknown"
+        XL_LOG(ctx, level, "%s [%ld] gave unknown"
                " wait status 0x%x", what, (unsigned long)pid, status);
     }
 }
@@ -145,7 +143,7 @@ static void report_spawn_intermediate_st
         char *intermediate_what = libxl_sprintf(ctx,
                           "%s intermediate process (startup monitor)",
                           for_spawn->what);
-        libxl_report_child_exitstatus(ctx, intermediate_what,
+        libxl_report_child_exitstatus(ctx, XL_LOG_ERROR, intermediate_what,
                                       for_spawn->intermediate, status);
     }
 }
diff -r d005aa895b5a -r e226618aa715 tools/libxl/libxl_internal.h
--- a/tools/libxl/libxl_internal.h      Mon Apr 12 17:41:58 2010 +0100
+++ b/tools/libxl/libxl_internal.h      Mon Apr 12 17:42:29 2010 +0100
@@ -48,11 +48,6 @@
 #define XL_LOG_ERRNOVAL(ctx, loglevel, errnoval, _f, _a...)
 #endif
   /* all of these macros preserve errno (saving and restoring) */
-
-#define XL_LOG_DEBUG 3
-#define XL_LOG_INFO 2
-#define XL_LOG_WARNING 1
-#define XL_LOG_ERROR 0
 
 /* logging */
 void xl_logv(struct libxl_ctx *ctx, int errnoval, int loglevel, const char 
*file, int line, const char *func, char *fmt, va_list al);
diff -r d005aa895b5a -r e226618aa715 tools/libxl/libxl_utils.h
--- a/tools/libxl/libxl_utils.h Mon Apr 12 17:41:58 2010 +0100
+++ b/tools/libxl/libxl_utils.h Mon Apr 12 17:42:29 2010 +0100
@@ -48,5 +48,16 @@ int libxl_pipe(struct libxl_ctx *ctx, in
 int libxl_pipe(struct libxl_ctx *ctx, int pipes[2]);
   /* Just like fork(2), pipe(2), but log errors. */
 
+void libxl_report_child_exitstatus(struct libxl_ctx *ctx, int level,
+                                   const char *what, pid_t pid, int status);
+    /* treats all exit statuses as errors; if that's not what you want,
+     * check status yourself first */
+
+/* log levels: */
+#define XL_LOG_DEBUG 3
+#define XL_LOG_INFO 2
+#define XL_LOG_WARNING 1
+#define XL_LOG_ERROR 0
+
 #endif
 

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