From d9b3c0eef2ba256b4e1e694c3828d1f4713ebf68 Mon Sep 17 00:00:00 2001
From: Pierre Ossman <ossman@cendio.se>
Date: Mon, 10 Sep 2007 11:35:30 +0000
Subject: [PATCH] posix_madvise and posix_fadvise aren't present on all
 systems.

git-svn-id: file:///home/lennart/svn/public/pulseaudio/branches/lennart@1783 fefdeb5f-60dc-0310-8127-8f9354f1896f
---
 configure.ac                      | 4 ++--
 src/pulsecore/core-util.c         | 8 +++++---
 src/pulsecore/sound-file-stream.c | 2 ++
 src/pulsecore/sound-file.c        | 2 ++
 4 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/configure.ac b/configure.ac
index 71e95b8..c4f26c4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -247,8 +247,8 @@ AC_FUNC_FORK
 AC_FUNC_GETGROUPS
 AC_FUNC_SELECT_ARGTYPES
 AC_CHECK_FUNCS([chmod chown getaddrinfo getgrgid_r getpwuid_r gettimeofday \
-    getuid inet_ntop inet_pton nanosleep pipe posix_memalign setpgid setsid \
-    shm_open sigaction sleep sysconf])
+    getuid inet_ntop inet_pton nanosleep pipe posix_fadvise posix_madvise \
+    posix_memalign setpgid setsid shm_open sigaction sleep sysconf])
 AC_CHECK_FUNCS([mkfifo], [HAVE_MKFIFO=1], [HAVE_MKFIFO=0])
 
 AM_CONDITIONAL(HAVE_MKFIFO, test "x$HAVE_MKFIFO" = "x1")
diff --git a/src/pulsecore/core-util.c b/src/pulsecore/core-util.c
index 67d33e7..13a7252 100644
--- a/src/pulsecore/core-util.c
+++ b/src/pulsecore/core-util.c
@@ -1262,11 +1262,13 @@ void *pa_will_need(const void *p, size_t l) {
 
     a = PA_PAGE_ALIGN_PTR(p);
     size = (const uint8_t*) p + l - (const uint8_t*) a;
-    
+
+#ifdef HAVE_POSIX_MADVISE    
     if ((r = posix_madvise((void*) a, size, POSIX_MADV_WILLNEED)) == 0) {
         pa_log_debug("posix_madvise() worked fine!");
         return (void*) p;
     }
+#endif
     
     /* Most likely the memory was not mmap()ed from a file and thus
      * madvise() didn't work, so let's misuse mlock() do page this
@@ -1279,7 +1281,7 @@ void *pa_will_need(const void *p, size_t l) {
     pa_assert_se(getrlimit(RLIMIT_MEMLOCK, &rlim) == 0);
     
     if (rlim.rlim_cur < PA_PAGE_SIZE) {
-        pa_log_debug("posix_madvise() failed, resource limits don't allow mlock(), can't page in data: %s", pa_cstrerror(r));
+        pa_log_debug("posix_madvise() failed (or doesn't exist), resource limits don't allow mlock(), can't page in data: %s", pa_cstrerror(r));
         return (void*) p;
     }
     
@@ -1288,7 +1290,7 @@ void *pa_will_need(const void *p, size_t l) {
     bs = PA_PAGE_SIZE*4;
 #endif
         
-    pa_log_debug("posix_madvise() failed, trying mlock(): %s", pa_cstrerror(r));
+    pa_log_debug("posix_madvise() failed (or doesn't exist), trying mlock(): %s", pa_cstrerror(r));
 
     while (size > 0 && bs > 0) {
 
diff --git a/src/pulsecore/sound-file-stream.c b/src/pulsecore/sound-file-stream.c
index 36c7f03..d5523a6 100644
--- a/src/pulsecore/sound-file-stream.c
+++ b/src/pulsecore/sound-file-stream.c
@@ -255,6 +255,7 @@ int pa_play_file(
      * file reader into the main event loop and pass the data over the
      * asyncmsgq. */
 
+#ifdef HAVE_POSIX_FADVISE
     if (posix_fadvise(fd, 0, 0, POSIX_FADV_SEQUENTIAL) < 0) {
         pa_log_warn("POSIX_FADV_SEQUENTIAL failed: %s", pa_cstrerror(errno));
         goto fail;
@@ -266,6 +267,7 @@ int pa_play_file(
         goto fail;
     } else
         pa_log_debug("POSIX_FADV_WILLNEED succeeded.");
+#endif
     
     if (!(u->sndfile = sf_open_fd(fd, SFM_READ, &sfinfo, 1))) {
         pa_log("Failed to open file %s", fname);
diff --git a/src/pulsecore/sound-file.c b/src/pulsecore/sound-file.c
index ef43eef..8727ba1 100644
--- a/src/pulsecore/sound-file.c
+++ b/src/pulsecore/sound-file.c
@@ -67,11 +67,13 @@ int pa_sound_file_load(
         goto finish;
     }
 
+#ifdef HAVE_POSIX_FADVISE
     if (posix_fadvise(fd, 0, 0, POSIX_FADV_SEQUENTIAL) < 0) {
         pa_log_warn("POSIX_FADV_SEQUENTIAL failed: %s", pa_cstrerror(errno));
         goto finish;
     } else
         pa_log_debug("POSIX_FADV_SEQUENTIAL succeeded.");
+#endif
     
     if (!(sf = sf_open_fd(fd, SFM_READ, &sfinfo, 1))) {
         pa_log("Failed to open file %s", fname);
-- 
2.7.4