From: Arjan van de Ven <arjan@linux.intel.com>
Date: Sat, 17 Jan 2009 14:36:42 +0000 (+0200)
Subject: Use inotify to watch the coredump directory
X-Git-Tag: accepted/trunk/20130110.014835~207
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b5d602b1bdf4efd6263bf375ab1a60fbc7a468ad;p=platform%2Fupstream%2Fcorewatcher.git

Use inotify to watch the coredump directory
---

diff --git a/Makefile b/Makefile
index b44bfe8..4b67301 100644
--- a/Makefile
+++ b/Makefile
@@ -1,8 +1,8 @@
 all: extract_core
 
-CFLAGS = -O0 -g -Wall -W -D_FORTIFY_SOURCE=2 -fstack-protector
+CFLAGS = -O2 -g -Wall -W -D_FORTIFY_SOURCE=2 -fstack-protector
 
-extract_core: extract_core.o find_file.o coredumper.h
+extract_core: extract_core.o find_file.o coredumper.h Makefile
 	gcc $(CFLAGS) extract_core.o find_file.o -o extract_core
 	
 clean:
diff --git a/extract_core.c b/extract_core.c
index 42ade99..d29382d 100644
--- a/extract_core.c
+++ b/extract_core.c
@@ -3,12 +3,19 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
+#include <unistd.h>
+
+#include <sys/inotify.h>
+
 
 #include "coredumper.h"
 
+int inotifd, inotify_descriptor;
+
+
 char *extract_core(char *corefile)
 {
-	char *command = NULL, *c1 = NULL, *c2 = NULL, *line;
+	char *command = NULL, *c1 = NULL, *c2 = NULL, *line, *c3;
 	char *appfile;
 	FILE *file;
 
@@ -16,7 +23,10 @@ char *extract_core(char *corefile)
 	if (!appfile)
 		return NULL;
 
-	if (asprintf(&command, "gdb --batch -f %s %s -x gdb.command 2> /dev/null", appfile, corefile) < 0)
+	if (asprintf(&c1, "Program: %s\n", appfile) < 0)
+		return NULL;
+
+	if (asprintf(&command, "LANG=C gdb --batch -f %s %s -x gdb.command 2> /dev/null", appfile, corefile) < 0)
 		return NULL;
 		
 	file = popen(command, "r");
@@ -36,6 +46,15 @@ char *extract_core(char *corefile)
 			free(line);
 			continue;
 		}
+		if (strstr(line, "Core was generated by `")) {
+			free(line);
+			continue;
+		}
+		if (strstr(line,              "Program terminated with signal")) {
+			c3 = strchr(line, ',');
+			if (c3)
+				sprintf(line, "Type:%s", c3+1);
+		}
 
 		if (c1) {
 			c1 = NULL;
@@ -54,12 +73,50 @@ char *extract_core(char *corefile)
 	return c1;
 }
 
+void process_corefile(char *filename)
+{
+	char *ptr;
+	ptr = extract_core(filename);
+
+	if (!ptr)
+		return;
+
+	printf("-%s-\n", ptr);
+
+	free(ptr);
+}
+
+void wait_for_corefile(void)
+{
+	char buffer[8192];
+	char fullpath[8192];
+	struct inotify_event *event = (struct inotify_event *)&buffer;
+
+	while (1) {
+		if (read(inotifd, &buffer, 8192) < 0)
+			return;
+		sprintf(fullpath,"/var/cores/%s", event->name);
+		process_corefile(fullpath);
+	}
+
+}
+
 int main(int argc, char **argv)
 {
-	if (argc <= 1) {
-		printf("Usage:\n\textract_core <core file>\n");
+	inotifd = inotify_init();
+	if (inotifd < 0) {
+		printf("No inotify support in the kernel... aborting\n");
 		return EXIT_FAILURE;
 	}
-	printf("%s\n", extract_core(argv[1]));
+	inotify_descriptor = inotify_add_watch(inotifd, "/var/cores/", IN_CLOSE_WRITE);
+
+	if (argc > 1)
+		process_corefile(argv[1]);
+	else
+		wait_for_corefile();
+
+
+	inotify_rm_watch(inotifd, inotify_descriptor);
+	close(inotifd);
 	return EXIT_SUCCESS;
 }
\ No newline at end of file