diff options
Diffstat (limited to 'winsup/cygwin/debug.cc')
| -rw-r--r-- | winsup/cygwin/debug.cc | 143 |
1 files changed, 0 insertions, 143 deletions
diff --git a/winsup/cygwin/debug.cc b/winsup/cygwin/debug.cc index f918b87c0..280cbb44d 100644 --- a/winsup/cygwin/debug.cc +++ b/winsup/cygwin/debug.cc @@ -7,7 +7,6 @@ Cygwin license. Please consult the file "CYGWIN_LICENSE" for details. */ #include "winsup.h" -#include "exceptions.h" #include "sync.h" #include "sigproc.h" #include "pinfo.h" @@ -25,148 +24,6 @@ details. */ #undef CloseHandle -static muto NO_COPY *threadname_lock = NULL; -#define lock_threadname() \ - do {if (threadname_lock) threadname_lock->acquire (INFINITE); } while (0) - -#define unlock_threadname() \ - do {if (threadname_lock) threadname_lock->release (); } while (0) - -typedef struct - { - DWORD id; - const char *name; - } thread_info; - -static NO_COPY thread_info threads[32]; // increase as necessary -#define NTHREADS (sizeof (threads) / sizeof (threads[0])) - -void -threadname_init () -{ - new_muto (threadname_lock); -} - -void __stdcall -regthread (const char *name, DWORD tid) -{ - lock_threadname (); - for (DWORD i = 0; i < NTHREADS; i++) - if (threads[i].name == NULL || strcmp (threads[i].name, name) == 0 || - threads[i].id == tid) - { - threads[i].name = name; - threads[i].id = tid; - break; - } - unlock_threadname (); -} - -int __stdcall -iscygthread () -{ - DWORD tid = GetCurrentThreadId (); - if (tid != mainthread.id) - for (DWORD i = 0; i < NTHREADS && threads[i].name != NULL; i++) - if (threads[i].id == tid) - return 1; - return 0; -} - -struct thread_start - { - LONG notavail; - LPTHREAD_START_ROUTINE func; - VOID *arg; - }; - -/* A place to store arguments to thread_stub since they can't be - stored on the stack. An available element is !notavail. */ -thread_start NO_COPY start_buf[NTHREADS] = {{0, NULL,NULL}}; - -/* Initial stub called by makethread. Performs initial per-thread - initialization. */ -static DWORD WINAPI -thread_stub (VOID *arg) -{ - DECLARE_TLS_STORAGE; - LPTHREAD_START_ROUTINE threadfunc = ((thread_start *) arg)->func; - VOID *threadarg = ((thread_start *) arg)->arg; - - exception_list except_entry; - - /* Give up our slot in the start_buf array */ - (void) InterlockedExchange (&((thread_start *) arg)->notavail, 0); - - /* Initialize this thread's ability to respond to things like - SIGSEGV or SIGFPE. */ - init_exceptions (&except_entry); - - ExitThread (threadfunc (threadarg)); -} - -/* Wrapper for CreateThread. Registers the thread name/id and ensures that - cygwin threads are properly initialized. */ -HANDLE __stdcall -makethread (LPTHREAD_START_ROUTINE start, LPVOID param, DWORD flags, - const char *name) -{ - DWORD tid; - HANDLE h; - thread_start *info; /* Various information needed by the newly created thread */ - - for (;;) - { - /* Search the start_buf array for an empty slot to use */ - for (info = start_buf; info < start_buf + NTHREADS; info++) - if (!InterlockedExchange (&info->notavail, 1)) - goto out; - - /* Should never hit here, but be defensive anyway. */ - Sleep (0); - } - -out: - info->func = start; /* Real function to start */ - info->arg = param; /* The single parameter to the thread */ - - if ((h = CreateThread (&sec_none_nih, 0, thread_stub, (VOID *) info, flags, - &tid))) - regthread (name, tid); /* Register for debugging output. */ - - return h; -} - -/* Return the symbolic name of the current thread for debugging. - */ -const char * __stdcall -threadname (DWORD tid, int lockit) -{ - const char *res = NULL; - if (!tid) - tid = GetCurrentThreadId (); - - if (lockit) - lock_threadname (); - for (DWORD i = 0; i < NTHREADS && threads[i].name != NULL; i++) - if (threads[i].id == tid) - { - res = threads[i].name; - break; - } - if (lockit) - unlock_threadname (); - - if (!res) - { - static char buf[30] NO_COPY = {0}; - __small_sprintf (buf, "unknown (%p)", tid); - res = buf; - } - - return res; -} - #ifdef DEBUGGING /* Here lies extra debugging routines which help track down internal Cygwin problems when compiled with -DDEBUGGING . */ |