@@ -16,24 +16,60 @@ written by
16 16
#ifndef INC_SRT_THREADNAME_H
17 17
#define INC_SRT_THREADNAME_H
18 18 19 -
#if defined(__APPLE__) || defined(__linux__)
20 -
#if defined(__linux__)
21 -
#include <sys/prctl.h>
19 +
// NOTE:
20 +
// HAVE_PTHREAD_GETNAME_NP_IN_PTHREAD_NP_H
21 +
// HAVE_PTHREAD_SETNAME_NP_IN_PTHREAD_NP_H
22 +
// HAVE_PTHREAD_GETNAME_NP
23 +
// HAVE_PTHREAD_GETNAME_NP
24 +
// Are detected and set in ../CMakeLists.txt.
25 +
// OS Availability of pthread_getname_np(..) and pthread_setname_np(..)::
26 +
// MacOS(10.6)
27 +
// iOS(3.2)
28 +
// AIX(7.1)
29 +
// FreeBSD(version?), OpenBSD(Version?)
30 +
// Linux-GLIBC(GLIBC-2.12).
31 +
// Linux-MUSL(MUSL-1.1.20 Partial Implementation. See below).
32 +
// MINGW-W64(4.0.6)
33 + 34 +
#if defined(HAVE_PTHREAD_GETNAME_NP_IN_PTHREAD_NP_H) \
35 +
|| defined(HAVE_PTHREAD_SETNAME_NP_IN_PTHREAD_NP_H)
36 +
#include <pthread_np.h>
37 +
#if defined(HAVE_PTHREAD_GETNAME_NP_IN_PTHREAD_NP_H) \
38 +
&& !defined(HAVE_PTHREAD_GETNAME_NP)
39 +
#define HAVE_PTHREAD_GETNAME_NP 1
40 +
#endif
41 +
#if defined(HAVE_PTHREAD_SETNAME_NP_IN_PTHREAD_NP_H) \
42 +
&& !defined(HAVE_PTHREAD_SETNAME_NP)
43 +
#define HAVE_PTHREAD_SETNAME_NP 1
44 +
#endif
22 45
#endif
23 46 24 -
#include <pthread.h>
47 +
#if (defined(HAVE_PTHREAD_GETNAME_NP) && defined(HAVE_PTHREAD_GETNAME_NP)) \
48 +
|| defined(__linux__)
49 +
// NOTE:
50 +
// Linux pthread_getname_np() and pthread_setname_np() became available
51 +
// in GLIBC-2.12 and later.
52 +
// Some Linux runtimes do not have pthread_getname_np(), but have
53 +
// pthread_setname_np(), for instance MUSL at least as of v1.1.20.
54 +
// So using the prctl() for Linux is more portable.
55 +
#if defined(__linux__)
56 +
#include <sys/prctl.h>
57 +
#endif
58 +
#include <pthread.h>
25 59
#endif
26 60 27 61
#include <cstdio>
28 62
#include <cstring>
29 63
#include <string>
30 64 65 +
#include "common.h"
31 66
#include "sync.h"
32 67 33 68
class ThreadName
34 69
{
35 70 36 -
#if defined(__APPLE__) || defined(__linux__)
71 +
#if (defined(HAVE_PTHREAD_GETNAME_NP) && defined(HAVE_PTHREAD_GETNAME_NP)) \
72 +
|| defined(__linux__)
37 73 38 74
class ThreadNameImpl
39 75
{
@@ -47,8 +83,7 @@ class ThreadName
47 83
// since Linux 2.6.11. The buffer should allow space for up to 16
48 84
// bytes; the returned string will be null-terminated.
49 85
return prctl(PR_GET_NAME, (unsigned long)namebuf, 0, 0) != -1;
50 -
#elif defined(__APPLE__)
51 -
// since macos(10.6), ios(3.2)
86 +
#elif defined(HAVE_PTHREAD_GETNAME_NP)
52 87
return pthread_getname_np(pthread_self(), namebuf, BUFSIZE) == 0;
53 88
#else
54 89
#error "unsupported platform"
@@ -57,14 +92,18 @@ class ThreadName
57 92 58 93
static bool set(const char* name)
59 94
{
95 +
SRT_ASSERT(name != NULL);
60 96
#if defined(__linux__)
61 97
// The name can be up to 16 bytes long, including the terminating
62 98
// null byte. (If the length of the string, including the terminating
63 99
// null byte, exceeds 16 bytes, the string is silently truncated.)
64 100
return prctl(PR_SET_NAME, (unsigned long)name, 0, 0) != -1;
65 -
#elif defined(__APPLE__)
66 -
// since macos(10.6), ios(3.2)
101 +
#elif defined(HAVE_PTHREAD_SETNAME_NP)
102 +
#if defined(__APPLE__)
67 103
return pthread_setname_np(name) == 0;
104 +
#else
105 +
return pthread_setname_np(pthread_self(), name) == 0;
106 +
#endif
68 107
#else
69 108
#error "unsupported platform"
70 109
#endif
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