Mercurial > hg > nginx-quic
view src/os/win32/ngx_process.c @ 7230:098bbd076a2d
Upstream: trailers support, u->conf->pass_trailers flag.
Basic trailer headers support allows one to access response trailers
via the $upstream_trailer_* variables.
Additionally, the u->conf->pass_trailers flag was introduced. When the
flag is set, trailer headers from the upstream response are passed to
the client. Like normal headers, trailer headers will be hidden
if present in u->conf->hide_headers_hash.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Sat, 17 Mar 2018 23:04:21 +0300 |
parents | 7640d6c213e1 |
children |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #include <ngx_config.h> #include <ngx_core.h> int ngx_argc; char **ngx_argv; char **ngx_os_argv; ngx_int_t ngx_last_process; ngx_process_t ngx_processes[NGX_MAX_PROCESSES]; ngx_pid_t ngx_spawn_process(ngx_cycle_t *cycle, char *name, ngx_int_t respawn) { u_long rc, n, code; ngx_int_t s; ngx_pid_t pid; ngx_exec_ctx_t ctx; HANDLE events[2]; char file[MAX_PATH + 1]; if (respawn >= 0) { s = respawn; } else { for (s = 0; s < ngx_last_process; s++) { if (ngx_processes[s].handle == NULL) { break; } } if (s == NGX_MAX_PROCESSES) { ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, "no more than %d processes can be spawned", NGX_MAX_PROCESSES); return NGX_INVALID_PID; } } n = GetModuleFileName(NULL, file, MAX_PATH); if (n == 0) { ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, "GetModuleFileName() failed"); return NGX_INVALID_PID; } file[n] = '\0'; ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0, "GetModuleFileName: \"%s\"", file); ctx.path = file; ctx.name = name; ctx.args = GetCommandLine(); ctx.argv = NULL; ctx.envp = NULL; pid = ngx_execute(cycle, &ctx); if (pid == NGX_INVALID_PID) { return pid; } ngx_memzero(&ngx_processes[s], sizeof(ngx_process_t)); ngx_processes[s].handle = ctx.child; ngx_processes[s].pid = pid; ngx_processes[s].name = name; ngx_sprintf(ngx_processes[s].term_event, "ngx_%s_term_%P%Z", name, pid); ngx_sprintf(ngx_processes[s].quit_event, "ngx_%s_quit_%P%Z", name, pid); ngx_sprintf(ngx_processes[s].reopen_event, "ngx_%s_reopen_%P%Z", name, pid); events[0] = ngx_master_process_event; events[1] = ctx.child; rc = WaitForMultipleObjects(2, events, 0, 5000); ngx_time_update(); ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0, "WaitForMultipleObjects: %ul", rc); switch (rc) { case WAIT_OBJECT_0: ngx_processes[s].term = OpenEvent(EVENT_MODIFY_STATE, 0, (char *) ngx_processes[s].term_event); if (ngx_processes[s].term == NULL) { ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, "OpenEvent(\"%s\") failed", ngx_processes[s].term_event); goto failed; } ngx_processes[s].quit = OpenEvent(EVENT_MODIFY_STATE, 0, (char *) ngx_processes[s].quit_event); if (ngx_processes[s].quit == NULL) { ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, "OpenEvent(\"%s\") failed", ngx_processes[s].quit_event); goto failed; } ngx_processes[s].reopen = OpenEvent(EVENT_MODIFY_STATE, 0, (char *) ngx_processes[s].reopen_event); if (ngx_processes[s].reopen == NULL) { ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, "OpenEvent(\"%s\") failed", ngx_processes[s].reopen_event); goto failed; } if (ResetEvent(ngx_master_process_event) == 0) { ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, "ResetEvent(\"%s\") failed", ngx_master_process_event_name); goto failed; } break; case WAIT_OBJECT_0 + 1: if (GetExitCodeProcess(ctx.child, &code) == 0) { ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, "GetExitCodeProcess(%P) failed", pid); } ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, "%s process %P exited with code %Xl", name, pid, code); goto failed; case WAIT_TIMEOUT: ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, "the event \"%s\" was not signaled for 5s", ngx_master_process_event_name); goto failed; case WAIT_FAILED: ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, "WaitForSingleObject(\"%s\") failed", ngx_master_process_event_name); goto failed; } if (respawn >= 0) { return pid; } switch (respawn) { case NGX_PROCESS_RESPAWN: ngx_processes[s].just_spawn = 0; break; case NGX_PROCESS_JUST_RESPAWN: ngx_processes[s].just_spawn = 1; break; } if (s == ngx_last_process) { ngx_last_process++; } return pid; failed: if (ngx_processes[s].reopen) { ngx_close_handle(ngx_processes[s].reopen); } if (ngx_processes[s].quit) { ngx_close_handle(ngx_processes[s].quit); } if (ngx_processes[s].term) { ngx_close_handle(ngx_processes[s].term); } TerminateProcess(ngx_processes[s].handle, 2); if (ngx_processes[s].handle) { ngx_close_handle(ngx_processes[s].handle); ngx_processes[s].handle = NULL; } return NGX_INVALID_PID; } ngx_pid_t ngx_execute(ngx_cycle_t *cycle, ngx_exec_ctx_t *ctx) { STARTUPINFO si; PROCESS_INFORMATION pi; ngx_memzero(&si, sizeof(STARTUPINFO)); si.cb = sizeof(STARTUPINFO); ngx_memzero(&pi, sizeof(PROCESS_INFORMATION)); if (CreateProcess(ctx->path, ctx->args, NULL, NULL, 0, CREATE_NO_WINDOW, NULL, NULL, &si, &pi) == 0) { ngx_log_error(NGX_LOG_CRIT, cycle->log, ngx_errno, "CreateProcess(\"%s\") failed", ngx_argv[0]); return 0; } ctx->child = pi.hProcess; if (CloseHandle(pi.hThread) == 0) { ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, "CloseHandle(pi.hThread) failed"); } ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "start %s process %P", ctx->name, pi.dwProcessId); return pi.dwProcessId; }