Mercurial > hg > nginx
annotate src/misc/ngx_google_perftools_module.c @ 9239:b2e16e8639c8
Request body: improved c->read->ready flag handling.
Previously, the c->read->ready flag was only checked when c->recv() wasn't
able to fill the whole body buffer. Now the flag is also checked if
the buffer is fully filled.
This ensures that ev->available checks as introduced in 7583:efd71d49bde0
and 7584:9d2ad2fb4423 will be able to prevent reading from the socket
when using event methods other than kqueue or epoll, and when using SSL.
This might be important to avoid looping for a long time when reading
request body from fast clients.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Sat, 30 Mar 2024 05:09:12 +0300 |
parents | a27e0c7e198c |
children |
rev | line source |
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1949 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4412 | 4 * Copyright (C) Nginx, Inc. |
1949 | 5 */ |
6 | |
7 | |
8 #include <ngx_config.h> | |
9 #include <ngx_core.h> | |
10 | |
11 /* | |
3478
eb8660fecc12
fix a comment and a style fix
Igor Sysoev <igor@sysoev.ru>
parents:
1949
diff
changeset
|
12 * declare Profiler interface here because |
1949 | 13 * <google/profiler.h> is C++ header file |
14 */ | |
15 | |
16 int ProfilerStart(u_char* fname); | |
17 void ProfilerStop(void); | |
18 void ProfilerRegisterThread(void); | |
19 | |
20 | |
21 static void *ngx_google_perftools_create_conf(ngx_cycle_t *cycle); | |
22 static ngx_int_t ngx_google_perftools_worker(ngx_cycle_t *cycle); | |
23 | |
24 | |
25 typedef struct { | |
26 ngx_str_t profiles; | |
27 } ngx_google_perftools_conf_t; | |
28 | |
29 | |
30 static ngx_command_t ngx_google_perftools_commands[] = { | |
31 | |
32 { ngx_string("google_perftools_profiles"), | |
33 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1, | |
34 ngx_conf_set_str_slot, | |
35 0, | |
36 offsetof(ngx_google_perftools_conf_t, profiles), | |
37 NULL }, | |
38 | |
7066
a27e0c7e198c
Style: aligned ngx_null_command.
Ruslan Ermilov <ru@nginx.com>
parents:
4412
diff
changeset
|
39 ngx_null_command |
1949 | 40 }; |
41 | |
42 | |
43 static ngx_core_module_t ngx_google_perftools_module_ctx = { | |
44 ngx_string("google_perftools"), | |
45 ngx_google_perftools_create_conf, | |
46 NULL | |
47 }; | |
48 | |
49 | |
50 ngx_module_t ngx_google_perftools_module = { | |
51 NGX_MODULE_V1, | |
52 &ngx_google_perftools_module_ctx, /* module context */ | |
53 ngx_google_perftools_commands, /* module directives */ | |
54 NGX_CORE_MODULE, /* module type */ | |
55 NULL, /* init master */ | |
56 NULL, /* init module */ | |
57 ngx_google_perftools_worker, /* init process */ | |
58 NULL, /* init thread */ | |
59 NULL, /* exit thread */ | |
60 NULL, /* exit process */ | |
61 NULL, /* exit master */ | |
62 NGX_MODULE_V1_PADDING | |
63 }; | |
64 | |
65 | |
66 static void * | |
67 ngx_google_perftools_create_conf(ngx_cycle_t *cycle) | |
68 { | |
69 ngx_google_perftools_conf_t *gptcf; | |
70 | |
71 gptcf = ngx_pcalloc(cycle->pool, sizeof(ngx_google_perftools_conf_t)); | |
72 if (gptcf == NULL) { | |
73 return NULL; | |
74 } | |
75 | |
76 /* | |
3480 | 77 * set by ngx_pcalloc() |
1949 | 78 * |
79 * gptcf->profiles = { 0, NULL }; | |
80 */ | |
81 | |
82 return gptcf; | |
83 } | |
84 | |
85 | |
86 static ngx_int_t | |
87 ngx_google_perftools_worker(ngx_cycle_t *cycle) | |
88 { | |
89 u_char *profile; | |
90 ngx_google_perftools_conf_t *gptcf; | |
91 | |
92 gptcf = (ngx_google_perftools_conf_t *) | |
93 ngx_get_conf(cycle->conf_ctx, ngx_google_perftools_module); | |
94 | |
95 if (gptcf->profiles.len == 0) { | |
96 return NGX_OK; | |
97 } | |
98 | |
99 profile = ngx_alloc(gptcf->profiles.len + NGX_INT_T_LEN + 2, cycle->log); | |
100 if (profile == NULL) { | |
101 return NGX_OK; | |
102 } | |
103 | |
104 if (getenv("CPUPROFILE")) { | |
105 /* disable inherited Profiler enabled in master process */ | |
106 ProfilerStop(); | |
107 } | |
108 | |
109 ngx_sprintf(profile, "%V.%d%Z", &gptcf->profiles, ngx_pid); | |
110 | |
111 if (ProfilerStart(profile)) { | |
112 /* start ITIMER_PROF timer */ | |
113 ProfilerRegisterThread(); | |
114 | |
115 } else { | |
116 ngx_log_error(NGX_LOG_CRIT, cycle->log, ngx_errno, | |
117 "ProfilerStart(%s) failed", profile); | |
118 } | |
119 | |
120 ngx_free(profile); | |
121 | |
122 return NGX_OK; | |
123 } | |
124 | |
125 | |
126 /* ProfilerStop() is called on Profiler destruction */ |