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gh-81057: Move Threading-Related Globals to _PyRuntimeState (#100084)

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https://github.com/python/cpython/issues/81057
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Eric Snow 2022-12-08 17:50:58 -07:00 • committed by GitHub
parent bc8cdf8c3d
commit 1160001b34
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11 changed files with 114 additions and 54 deletions
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24
Python/thread_pthread.h
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@ -119,20 +119,16 @@
* pthread_cond support
*/
#if defined(HAVE_PTHREAD_CONDATTR_SETCLOCK) && defined(HAVE_CLOCK_GETTIME) && defined(CLOCK_MONOTONIC)
// monotonic is supported statically. It doesn't mean it works on runtime.
#define CONDATTR_MONOTONIC
#endif
// NULL when pthread_condattr_setclock(CLOCK_MONOTONIC) is not supported.
static pthread_condattr_t *condattr_monotonic = NULL;
#define condattr_monotonic _PyRuntime.threads._condattr_monotonic.ptr
static void
init_condattr(void)
{
#ifdef CONDATTR_MONOTONIC
static pthread_condattr_t ca;
# define ca _PyRuntime.threads._condattr_monotonic.val
// XXX We need to check the return code?
pthread_condattr_init(&ca);
// XXX We need to run pthread_condattr_destroy() during runtime fini.
if (pthread_condattr_setclock(&ca, CLOCK_MONOTONIC) == 0) {
condattr_monotonic = &ca; // Use monotonic clock
}
@ -192,15 +188,21 @@ typedef struct {
"%s: %s\n", name, strerror(status)); error = 1; }
/*
* Initialization.
* Initialization for the current runtime.
*/
static void
PyThread__init_thread(void)
{
// The library is only initialized once in the process,
// regardless of how many times the Python runtime is initialized.
static int lib_initialized = 0;
if (!lib_initialized) {
lib_initialized = 1;
#if defined(_AIX) && defined(__GNUC__)
extern void pthread_init(void);
pthread_init();
extern void pthread_init(void);
pthread_init();
#endif
}
init_condattr();
}