| thr_info.c (144518) | thr_info.c (154130) |
|---|---|
| 1/* 2 * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 15 unchanged lines hidden (view full) --- 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * | 1/* 2 * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 15 unchanged lines hidden (view full) --- 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * |
| 32 * $FreeBSD: head/lib/libthr/thread/thr_info.c 144518 2005-04-02 01:20:00Z davidxu $ | 32 * $FreeBSD: head/lib/libthr/thread/thr_info.c 154130 2006-01-09 08:07:22Z davidxu $ |
| 33 */ 34 35#include <stdio.h> 36#include <stdlib.h> | 33 */ 34 35#include <stdio.h> 36#include <stdlib.h> |
| 37#include <fcntl.h> | |
| 38#include <string.h> | 37#include <string.h> |
| 39#include <unistd.h> 40#include <pthread.h> 41#include <errno.h> | |
| 42 43#include "thr_private.h" 44 | 38 39#include "thr_private.h" 40 |
| 45#ifndef NELEMENTS 46#define NELEMENTS(arr) (sizeof(arr) / sizeof(arr[0])) 47#endif 48 49static void dump_thread(int fd, pthread_t pthread, int long_version); 50 51__weak_reference(_pthread_set_name_np, pthread_set_name_np); 52 53struct s_thread_info { 54 enum pthread_state state; 55 char *name; 56}; 57 58/* Static variables: */ 59static const struct s_thread_info thread_info[] = { 60 {PS_RUNNING , "Running"}, 61 {PS_MUTEX_WAIT , "Waiting on a mutex"}, 62 {PS_JOIN , "Waiting to join"}, 63 {PS_SUSPENDED , "Suspended"}, 64 {PS_DEAD , "Dead"}, 65 {PS_DEADLOCK , "Deadlocked"}, 66 {PS_STATE_MAX , "Not a real state!"} 67}; 68 | 41/* Set the thread name for debug. */ |
| 69void | 42void |
| 70_thread_dump_info(void) | 43_pthread_set_name_np(pthread_t thread, char *name) |
| 71{ | 44{ |
| 72 char s[512], tmpfile[128]; 73 pthread_t pthread; 74 int fd, i; 75 76 for (i = 0; i < 100000; i++) { 77 snprintf(tmpfile, sizeof(tmpfile), "/tmp/pthread.dump.%u.%i", 78 getpid(), i); 79 /* Open the dump file for append and create it if necessary: */ 80 if ((fd = __sys_open(tmpfile, O_RDWR | O_CREAT | O_EXCL, 81 0666)) < 0) { 82 /* Can't open the dump file. */ 83 if (errno == EEXIST) 84 continue; 85 /* 86 * We only need to continue in case of 87 * EEXIT error. Most other error 88 * codes means that we will fail all 89 * the times. 90 */ 91 return; 92 } else { 93 break; 94 } 95 } 96 if (i==100000) { 97 /* all 100000 possibilities are in use :( */ 98 return; 99 } else { 100 /* Dump the active threads. */ 101 strcpy(s, "\n\n========\nACTIVE THREADS\n\n"); 102 __sys_write(fd, s, strlen(s)); 103 104 /* Enter a loop to report each thread in the global list: */ 105 TAILQ_FOREACH(pthread, &_thread_list, tle) { 106 if (pthread->state != PS_DEAD) 107 dump_thread(fd, pthread, /*long_verson*/ 1); 108 } 109 110 /* 111 * Dump the ready threads. 112 * XXX - We can't easily do this because the run queues 113 * are per-KSEG. 114 */ 115 strcpy(s, "\n\n========\nREADY THREADS - unimplemented\n\n"); 116 __sys_write(fd, s, strlen(s)); 117 118 119 /* 120 * Dump the waiting threads. 121 * XXX - We can't easily do this because the wait queues 122 * are per-KSEG. 123 */ 124 strcpy(s, "\n\n========\nWAITING THREADS - unimplemented\n\n"); 125 __sys_write(fd, s, strlen(s)); 126 127 /* Close the dump file. */ 128 __sys_close(fd); 129 } 130} 131 132static void 133dump_thread(int fd, pthread_t pthread, int long_version) 134{ | 45#if 0 |
| 135 struct pthread *curthread = _get_curthread(); | 46 struct pthread *curthread = _get_curthread(); |
| 136 char s[512]; 137 int i; | |
| 138 | 47 |
| 139 /* Find the state: */ 140 for (i = 0; i < NELEMENTS(thread_info) - 1; i++) 141 if (thread_info[i].state == pthread->state) 142 break; 143 144 /* Output a record for the thread: */ 145 snprintf(s, sizeof(s), 146 "--------------------\n" 147 "Thread %p (%s), scope %s, prio %3d, state %s [%s:%d]\n", 148 pthread, (pthread->name == NULL) ? "" : pthread->name, 149 pthread->attr.flags & PTHREAD_SCOPE_SYSTEM ? "system" : "process", 150 pthread->active_priority, 151 thread_info[i].name, pthread->fname, pthread->lineno); 152 __sys_write(fd, s, strlen(s)); 153 154 if (long_version != 0) { 155 /* Check if this is the running thread: */ 156 if (pthread == curthread) { 157 /* Output a record for the running thread: */ 158 strcpy(s, "This is the running thread\n"); 159 __sys_write(fd, s, strlen(s)); 160 } 161 /* Check if this is the initial thread: */ 162 if (pthread == _thr_initial) { 163 /* Output a record for the initial thread: */ 164 strcpy(s, "This is the initial thread\n"); 165 __sys_write(fd, s, strlen(s)); 166 } 167 168 /* Process according to thread state: */ 169 switch (pthread->state) { 170 /* 171 * Trap other states that are not explicitly 172 * coded to dump information: 173 */ 174 default: 175 snprintf(s, sizeof(s), "sigmask (hi) "); 176 __sys_write(fd, s, strlen(s)); 177 for (i = _SIG_WORDS - 1; i >= 0; i--) { 178 snprintf(s, sizeof(s), "%08x ", 179 pthread->sigmask.__bits[i]); 180 __sys_write(fd, s, strlen(s)); 181 } 182 snprintf(s, sizeof(s), "(lo)\n"); 183 __sys_write(fd, s, strlen(s)); 184 break; 185 } 186 } 187} 188 189/* Set the thread name for debug: */ 190void 191_pthread_set_name_np(pthread_t thread, char *name) 192{ 193 /* Check if the caller has specified a valid thread: */ | |
| 194 if (thread != NULL && thread->magic == THR_MAGIC) { | 48 if (thread != NULL && thread->magic == THR_MAGIC) { |
| 49 THR_THREAD_LOCK(curthread, thread); |
|
| 195 if (thread->name != NULL) { | 50 if (thread->name != NULL) { |
| 196 /* Free space for previous name. */ | |
| 197 free(thread->name); | 51 free(thread->name); |
| 52 thread->name = NULL; |
|
| 198 } | 53 } |
| 199 thread->name = strdup(name); | 54 if (name != NULL) 55 thread->name = strdup(name); 56 THR_THREAD_UNLOCK(curthread, thread); |
| 200 } | 57 } |
| 58#endif |
|
| 201} | 59} |