From 70c5967806da744dc2a3c121d89043dcceb4a260 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Thu, 15 May 2008 20:38:29 +0000
Subject: [PATCH] increase shm size limit, modernizations

git-svn-id: file:///home/lennart/svn/public/pulseaudio/branches/glitch-free@2430 fefdeb5f-60dc-0310-8127-8f9354f1896f
---
 src/pulsecore/shm.c | 12 ++++++------
 src/pulsecore/shm.h |  8 +++++---
 2 files changed, 11 insertions(+), 9 deletions(-)

diff --git a/src/pulsecore/shm.c b/src/pulsecore/shm.c
index a1bbf60..a684381 100644
--- a/src/pulsecore/shm.c
+++ b/src/pulsecore/shm.c
@@ -57,7 +57,7 @@
 #define MADV_REMOVE 9
 #endif
 
-#define MAX_SHM_SIZE (PA_ALIGN(1024*1024*20))
+#define MAX_SHM_SIZE (PA_ALIGN(1024*1024*64))
 
 #ifdef __linux__
 /* On Linux we know that the shared memory blocks are files in
@@ -86,13 +86,13 @@ static char *segment_name(char *fn, size_t l, unsigned id) {
     return fn;
 }
 
-int pa_shm_create_rw(pa_shm *m, size_t size, int shared, mode_t mode) {
+int pa_shm_create_rw(pa_shm *m, size_t size, pa_bool_t shared, mode_t mode) {
     char fn[32];
     int fd = -1;
 
     pa_assert(m);
     pa_assert(size > 0);
-    pa_assert(size < MAX_SHM_SIZE);
+    pa_assert(size <= MAX_SHM_SIZE);
     pa_assert(mode >= 0600);
 
     /* Each time we create a new SHM area, let's first drop all stale
@@ -124,7 +124,7 @@ int pa_shm_create_rw(pa_shm *m, size_t size, int shared, mode_t mode) {
         m->ptr = pa_xmalloc(m->size);
 #endif
 
-        m->do_unlink = 0;
+        m->do_unlink = FALSE;
 
     } else {
 #ifdef HAVE_SHM_OPEN
@@ -157,7 +157,7 @@ int pa_shm_create_rw(pa_shm *m, size_t size, int shared, mode_t mode) {
         pa_atomic_store(&marker->marker, SHM_MARKER);
 
         pa_assert_se(close(fd) == 0);
-        m->do_unlink = 1;
+        m->do_unlink = TRUE;
 #else
         return -1;
 #endif
@@ -375,7 +375,7 @@ int pa_shm_cleanup(void) {
         /* Ok, the owner of this shms segment is dead, so, let's remove the segment */
         segment_name(fn, sizeof(fn), id);
 
-        if (shm_unlink(fn) < 0 && errno != EACCES)
+        if (shm_unlink(fn) < 0 && errno != EACCES && errno != ENOENT)
             pa_log_warn("Failed to remove SHM segment %s: %s\n", fn, pa_cstrerror(errno));
     }
 
diff --git a/src/pulsecore/shm.h b/src/pulsecore/shm.h
index 270591d..60bc355 100644
--- a/src/pulsecore/shm.h
+++ b/src/pulsecore/shm.h
@@ -26,15 +26,17 @@
 
 #include <sys/types.h>
 
+#include <pulsecore/macro.h>
+
 typedef struct pa_shm {
     unsigned id;
     void *ptr;
     size_t size;
-    int do_unlink;
-    int shared;
+    pa_bool_t do_unlink:1;
+    pa_bool_t shared:1;
 } pa_shm;
 
-int pa_shm_create_rw(pa_shm *m, size_t size, int shared, mode_t mode);
+int pa_shm_create_rw(pa_shm *m, size_t size, pa_bool_t shared, mode_t mode);
 int pa_shm_attach_ro(pa_shm *m, unsigned id);
 
 void pa_shm_punch(pa_shm *m, size_t offset, size_t size);
-- 
2.7.4