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6842956: Assertion error in javax_sound on 64-bit RHEL 5.3 with 32-bit JDK

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Reviewed-by: bae
This commit is contained in:
Alex Menkov 2010-12-28 16:37:15 +03:00
parent 8d3bfc152b
commit d60b64b17c
1 changed files with 33 additions and 1 deletions
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34
jdk/src/solaris/native/com/sun/media/sound/PLATFORM_API_LinuxOS_ALSA_MidiIn.c
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@ -32,6 +32,9 @@
#include <alsa/asoundlib.h>
#include "PlatformMidi.h"
#include "PLATFORM_API_LinuxOS_ALSA_MidiUtils.h"
#if defined(i586)
#include <sys/utsname.h>
#endif
/*
* Helper methods
@ -73,9 +76,38 @@ char* MIDI_IN_GetErrorStr(INT32 err) {
return (char*) getErrorStr(err);
}
INT32 MIDI_IN_GetNumDevices() {
/* Workaround for 6842956: 32bit app on 64bit linux
* gets assertion failure trying to open midiIn ports.
* Untill the issue is fixed in ALSA
* (https://bugtrack.alsa-project.org/alsa-bug/view.php?id=4807)
* report no midi in devices in the configuration.
*/
#if defined(i586)
static int jre32onlinux64 = -1;
if (jre32onlinux64 < 0) {
jre32onlinux64 = 0;
/* The workaround may be disabled setting "JAVASOUND_ENABLE_MIDIIN"
* environment variable.
*/
if (getenv("JAVASOUND_ENABLE_MIDIIN") == NULL) {
struct utsname u;
jre32onlinux64 = 0;
if (uname(&u) == 0) {
if (strstr(u.machine, "64") != NULL) {
TRACE0("jre32 on linux64 detected - report no midiIn devices\n");
jre32onlinux64 = 1;
}
}
}
}
if (jre32onlinux64) {
return 0;
}
#endif
TRACE0("MIDI_IN_GetNumDevices()\n");
return getMidiDeviceCount(SND_RAWMIDI_STREAM_INPUT);
}