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annotate src/os/win32/ngx_process.h @ 5245:711fa02afae8

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Valgrind: supressed complaints about uninitialized bytes. Valgrind complains if we pass uninitialized memory to a syscall: ==36492== Syscall param sendmsg(msg.msg_iov[0]) points to uninitialised byte(s) ==36492== at 0x6B5E6A: sendmsg (in /usr/lib/system/libsystem_kernel.dylib) ==36492== by 0x10004288E: ngx_signal_worker_processes (ngx_process_cycle.c:527) ==36492== by 0x1000417A7: ngx_master_process_cycle (ngx_process_cycle.c:203) ==36492== by 0x100001F10: main (nginx.c:410) ==36492== Address 0x7fff5fbff71c is on thread 1's stack Even initialization of all members of the structure passed isn't enough, as there is padding which still remains uninitialized and results in Valgrind complaint. Note there is no real problem here as data from uninitialized memory isn't used.
author Maxim Dounin <mdounin@mdounin.ru>
date Wed, 05 Jun 2013 19:44:22 +0400
parents d620f497c50f
children 7296b38f6416
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 * Copyright (C) Nginx, Inc.
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5 */
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8 #ifndef _NGX_PROCESS_H_INCLUDED_
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9 #define _NGX_PROCESS_H_INCLUDED_
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12 typedef DWORD ngx_pid_t;
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13 #define NGX_INVALID_PID 0
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16 #define ngx_getpid GetCurrentProcessId
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17 #define ngx_log_pid ngx_pid
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20 #define NGX_PROCESS_SYNC_NAME \
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21 (sizeof("ngx_cache_manager_mutex_") + NGX_INT32_LEN)
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24 typedef struct {
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25 HANDLE handle;
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26 ngx_pid_t pid;
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27 char *name;
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28
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29 HANDLE term;
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30 HANDLE quit;
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31 HANDLE reopen;
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33 u_char term_event[NGX_PROCESS_SYNC_NAME];
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34 u_char quit_event[NGX_PROCESS_SYNC_NAME];
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35 u_char reopen_event[NGX_PROCESS_SYNC_NAME];
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36
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37 unsigned just_spawn:1;
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38 unsigned exiting:1;
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39 } ngx_process_t;
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42 typedef struct {
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43 char *path;
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44 char *name;
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45 char *args;
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46 char *const *argv;
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47 char *const *envp;
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48 HANDLE child;
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49 } ngx_exec_ctx_t;
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52 ngx_pid_t ngx_spawn_process(ngx_cycle_t *cycle, char *name, ngx_int_t respawn);
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53 ngx_pid_t ngx_execute(ngx_cycle_t *cycle, ngx_exec_ctx_t *ctx);
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55 #define ngx_debug_point()
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56 #define ngx_sched_yield() SwitchToThread()
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59 #define NGX_MAX_PROCESSES (MAXIMUM_WAIT_OBJECTS - 4)
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61 #define NGX_PROCESS_RESPAWN -2
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62 #define NGX_PROCESS_JUST_RESPAWN -3
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65 extern int ngx_argc;
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66 extern char **ngx_argv;
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67 extern char **ngx_os_argv;
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69 extern ngx_int_t ngx_last_process;
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70 extern ngx_process_t ngx_processes[NGX_MAX_PROCESSES];
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72 extern ngx_pid_t ngx_pid;
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75 #endif /* _NGX_PROCESS_H_INCLUDED_ */