X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=liblttng-ust%2Fcompat.h;h=003b480aa01d27dc428877dc9935963335e5340d;hb=HEAD;hp=200d9771f85462b91ceabb7b5404254787e25fb9;hpb=c0c0989ab70574e09b2f7e8b48c2da6af664a849;p=lttng-ust.git diff --git a/liblttng-ust/compat.h b/liblttng-ust/compat.h deleted file mode 100644 index 200d9771..00000000 --- a/liblttng-ust/compat.h +++ /dev/null @@ -1,141 +0,0 @@ -/* - * SPDX-License-Identifier: LGPL-2.1-only - * - * Copyright (C) 2011 Mathieu Desnoyers - * Copyright (C) 2016 Raphaël Beamonte - * Copyright (C) 2020 Michael Jeanson - */ - -#ifndef _UST_COMPAT_H -#define _UST_COMPAT_H - -#include -#include -#include - -#include - -#define LTTNG_UST_PROCNAME_SUFFIX "-ust" - - -#if defined(HAVE_PTHREAD_SETNAME_NP_WITH_TID) -static inline -int lttng_pthread_setname_np(const char *name) -{ - /* - * Some implementations don't error out, replicate this behavior for - * consistency. - */ - if (strnlen(name, LTTNG_UST_ABI_PROCNAME_LEN) >= LTTNG_UST_ABI_PROCNAME_LEN) { - return ERANGE; - } - - return pthread_setname_np(pthread_self(), name); -} - -static inline -int lttng_pthread_getname_np(char *name, size_t len) -{ - return pthread_getname_np(pthread_self(), name, len); -} -#elif defined(HAVE_PTHREAD_SETNAME_NP_WITHOUT_TID) -static inline -int lttng_pthread_setname_np(const char *name) -{ - return pthread_setname_np(name); -} - -static inline -int lttng_pthread_getname_np(char *name, size_t len) -{ - return pthread_getname_np(name, len); -} -#elif defined(HAVE_PTHREAD_SET_NAME_NP_WITH_TID) - -#include -static inline -int lttng_pthread_setname_np(const char *name) -{ - /* Replicate pthread_setname_np's behavior */ - if (strnlen(name, LTTNG_UST_ABI_PROCNAME_LEN) >= LTTNG_UST_ABI_PROCNAME_LEN) { - return ERANGE; - } - - pthread_set_name_np(pthread_self(), name); - return 0; -} - -static inline -int lttng_pthread_getname_np(char *name, size_t len) -{ - pthread_get_name_np(pthread_self(), name, len); - return 0; -} -#elif defined(__linux__) - -/* Fallback on prtctl on Linux */ -#include - -static inline -int lttng_pthread_setname_np(const char *name) -{ - /* Replicate pthread_setname_np's behavior */ - if (strnlen(name, LTTNG_UST_ABI_PROCNAME_LEN) >= LTTNG_UST_ABI_PROCNAME_LEN) { - return ERANGE; - } - return prctl(PR_SET_NAME, name, 0, 0, 0); -} - -static inline -int lttng_pthread_getname_np(char *name, size_t len) -{ - return prctl(PR_GET_NAME, name, 0, 0, 0); -} - -#else -#error "Please add pthread name support for your OS." -#endif - -/* - * If a pthread setname/set_name function is available, declare - * the setustprocname() function that will add '-ust' to the end - * of the current process name, while truncating it if needed. - */ -static inline -int lttng_ust_setustprocname(void) -{ - int ret = 0, len; - char name[LTTNG_UST_ABI_PROCNAME_LEN]; - int limit = LTTNG_UST_ABI_PROCNAME_LEN - strlen(LTTNG_UST_PROCNAME_SUFFIX) - 1; - - /* - * Get the current thread name. - */ - ret = lttng_pthread_getname_np(name, LTTNG_UST_ABI_PROCNAME_LEN); - if (ret) { - goto error; - } - - len = strlen(name); - if (len > limit) { - len = limit; - } - - ret = sprintf(name + len, LTTNG_UST_PROCNAME_SUFFIX); - if (ret != strlen(LTTNG_UST_PROCNAME_SUFFIX)) { - goto error; - } - - ret = lttng_pthread_setname_np(name); - -error: - return ret; -} - -#include - -#ifndef ENODATA -#define ENODATA ENOMSG -#endif - -#endif /* _UST_COMPAT_H */