Implement signal handler

[Version] Release 0.2.8
[Profile] Common
[Issue Type] Add features

As ASM deprecated in 3.0, signal handler is  implemented in mm_session library

Change-Id: Ic08a0484c95966bb0696beb6e1b39c794d67d59c
Signed-off-by: inhyeok <i_bc.kim@samsung.com>

diff --git a/mm_session.c b/mm_session.c
index d481e3e..f37ff98 100644 (file)
--- a/mm_session.c
+++ b/mm_session.c
@@ -30,12 +30,20 @@
 #include <errno.h>
 #include <glib.h>
 #include <pthread.h>
+#include <signal.h>
 
 #define EXPORT_API __attribute__((__visibility__("default")))
 #define MAX_FILE_LENGTH 256
 
 int g_session_type = -1;
 
+struct sigaction session_int_old_action;
+struct sigaction session_abrt_old_action;
+struct sigaction session_segv_old_action;
+struct sigaction session_term_old_action;
+struct sigaction session_sys_old_action;
+struct sigaction session_xcpu_old_action;
+
 EXPORT_API
 int mm_session_init(int sessiontype)
 {
@@ -296,7 +304,7 @@ int _mm_session_util_delete_information(int app_pid)
                mypid = (pid_t)app_pid;
 
        ////// DELETE SESSION TYPE /////////
-       snprintf(filename, sizeof(filename)-1, "/tmp/mm_session_%d",mypid);
+       snprintf(filename, sizeof(filename)-1, "/tmp/mm_session_%d", mypid);
        if(-1 ==  unlink(filename))
                return MM_ERROR_FILE_NOT_FOUND;
        ////// DELETE SESSION TYPE /////////
@@ -321,7 +329,7 @@ int _mm_session_util_write_type(int app_pid, int sessiontype)
                mypid = (pid_t)app_pid;
 
        ////// WRITE SESSION TYPE /////////
-       snprintf(filename, sizeof(filename)-1, "/tmp/mm_session_%d",mypid);
+       snprintf(filename, sizeof(filename)-1, "/tmp/mm_session_%d", mypid);
        fd = open(filename, O_WRONLY | O_CREAT, 0644 );
        if(fd < 0) {
                debug_error("open() failed with %d",errno);
@@ -358,7 +366,7 @@ int _mm_session_util_read_type(int app_pid, int *sessiontype)
                mypid = (pid_t)app_pid;
 
        ////// READ SESSION TYPE /////////
-       snprintf(filename, sizeof(filename)-1, "/tmp/mm_session_%d",mypid);
+       snprintf(filename, sizeof(filename)-1, "/tmp/mm_session_%d", mypid);
        fd = open(filename, O_RDONLY);
        if(fd < 0) {
                return MM_ERROR_INVALID_HANDLE;
@@ -396,7 +404,7 @@ int _mm_session_util_write_information(int app_pid, int session_type, int flags)
        }
 
        ////// WRITE SESSION INFO /////////
-       snprintf(filename, sizeof(filename)-1, "/tmp/mm_session_%d",mypid);
+       snprintf(filename, sizeof(filename)-1, "/tmp/mm_session_%d", mypid);
        fd = open(filename, O_WRONLY | O_CREAT, 0644 );
        if(fd < 0) {
                debug_error("open() failed with %d",errno);
@@ -437,7 +445,7 @@ int _mm_session_util_read_information(int app_pid, int *session_type, int *flags
        }
 
        ////// READ SESSION INFO /////////
-       snprintf(filename, sizeof(filename)-1, "/tmp/mm_session_%d",mypid);
+       snprintf(filename, sizeof(filename)-1, "/tmp/mm_session_%d", mypid);
        fd = open(filename, O_RDONLY);
        if(fd < 0) {
                return MM_ERROR_INVALID_HANDLE;
@@ -455,19 +463,99 @@ int _mm_session_util_read_information(int app_pid, int *session_type, int *flags
        return MM_ERROR_NONE;
 }
 
-__attribute__ ((destructor))
-void __mmsession_finalize(void)
+void __session_signal_handler(int signo)
 {
-       debug_fenter();
+       char* filename = NULL;
+       char str_error[256];
 
-       _mm_session_util_delete_information(-1);
+       debug_warning("ENTER, sig.num(%d)", signo);
 
-       debug_fleave();
+       /* signal block -------------- */
+       sigset_t old_mask, all_mask;
+       sigfillset(&all_mask);
+       sigprocmask(SIG_BLOCK, &all_mask, &old_mask);
+
+       filename = g_strdup_printf("/tmp/mm_session_%d", getpid());
+       if (!remove(filename)) {
+               debug_log(" remove %s success\n", filename);
+       } else {
+               strerror_r (errno, str_error, sizeof (str_error));
+               debug_error(" remove %s failed with %s\n", filename, str_error);
+       }
+
+       g_free(filename);
+
+       sigprocmask(SIG_SETMASK, &old_mask, NULL);
+       /* signal unblock ------------ */
+
+       switch (signo) {
+       case SIGINT:
+               sigaction(SIGINT, &session_int_old_action, NULL);
+               raise(signo);
+               break;
+       case SIGABRT:
+               sigaction(SIGABRT, &session_abrt_old_action, NULL);
+               raise(signo);
+               break;
+       case SIGSEGV:
+               sigaction(SIGSEGV, &session_segv_old_action, NULL);
+               raise(signo);
+               break;
+       case SIGTERM:
+               sigaction(SIGTERM, &session_term_old_action, NULL);
+               raise(signo);
+               break;
+       case SIGSYS:
+               sigaction(SIGSYS, &session_sys_old_action, NULL);
+               raise(signo);
+               break;
+       case SIGXCPU:
+               sigaction(SIGXCPU, &session_xcpu_old_action, NULL);
+               raise(signo);
+               break;
+       default:
+               break;
+       }
+
+       debug_warning("LEAVE");
 }
 
 __attribute__ ((constructor))
 void __mmsession_initialize(void)
 {
+       struct sigaction session_action;
+       session_action.sa_handler = __session_signal_handler;
+       session_action.sa_flags = SA_NOCLDSTOP;
+
+       debug_fenter();
+
+       sigemptyset(&session_action.sa_mask);
 
+       sigaction(SIGINT, &session_action, &session_int_old_action);
+       sigaction(SIGABRT, &session_action, &session_abrt_old_action);
+       sigaction(SIGSEGV, &session_action, &session_segv_old_action);
+       sigaction(SIGTERM, &session_action, &session_term_old_action);
+       sigaction(SIGSYS, &session_action, &session_sys_old_action);
+       sigaction(SIGXCPU, &session_action, &session_xcpu_old_action);
+
+       debug_fleave();
+}
+
+__attribute__ ((destructor))
+void __mmsession_finalize(void)
+{
+
+       debug_fenter();
+
+       _mm_session_util_delete_information(-1);
+
+       sigaction(SIGINT, &session_int_old_action, NULL);
+       sigaction(SIGABRT, &session_abrt_old_action, NULL);
+       sigaction(SIGSEGV, &session_segv_old_action, NULL);
+       sigaction(SIGTERM, &session_term_old_action, NULL);
+       sigaction(SIGSYS, &session_sys_old_action, NULL);
+       sigaction(SIGXCPU, &session_xcpu_old_action, NULL);
+
+       debug_fleave();
 }
 

diff --git a/packaging/libmm-session.spec b/packaging/libmm-session.spec
index c9b5bb5..ae1dd78 100644 (file)
--- a/packaging/libmm-session.spec
+++ b/packaging/libmm-session.spec
@@ -1,6 +1,6 @@
 Name:       libmm-session
 Summary:    Multimedia Session Library
-Version:    0.2.7
+Version:    0.2.8
 Release:    0
 Group:      Multimedia/Libraries
 License:    Apache-2.0