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php-src/ext/mysqlnd/mysqlnd_debug.c
Christoph M. Becker c3c76dbfb9 Merge branch 'PHP-7.3' into PHP-7.4 
* PHP-7.3:
  Fix #80115: mysqlnd.debug doesn't recognize absolute paths with slashes
2020-09-17 12:38:16 +02:00

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/*
+----------------------------------------------------------------------+
| PHP Version 7 |
+----------------------------------------------------------------------+
| Copyright (c) The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Andrey Hristov <andrey@php.net> |
| Ulf Wendel <uw@php.net> |
+----------------------------------------------------------------------+
*/
#include "php.h"
#include "mysqlnd.h"
#include "mysqlnd_priv.h"
#include "mysqlnd_debug.h"
static const char * const mysqlnd_debug_default_trace_file = "/tmp/mysqlnd.trace";
static const char * const mysqlnd_debug_empty_string = "";
/* {{{ mysqlnd_debug::open */
static enum_func_status
MYSQLND_METHOD(mysqlnd_debug, open)(MYSQLND_DEBUG * self, zend_bool reopen)
{
if (!self->file_name) {
return FAIL;
}
self->stream = php_stream_open_wrapper(self->file_name,
reopen == TRUE || self->flags & MYSQLND_DEBUG_APPEND? "ab":"wb",
REPORT_ERRORS, NULL);
return self->stream? PASS:FAIL;
}
/* }}} */
/* {{{ mysqlnd_debug::log */
static enum_func_status
MYSQLND_METHOD(mysqlnd_debug, log)(MYSQLND_DEBUG * self,
unsigned int line, const char * const file,
unsigned int level, const char * type, const char * message)
{
char pipe_buffer[512];
enum_func_status ret;
int i;
char * message_line;
unsigned int message_line_len;
unsigned int flags = self->flags;
char pid_buffer[10], time_buffer[30], file_buffer[200],
line_buffer[6], level_buffer[7];
if (!self->stream && FAIL == self->m->open(self, FALSE)) {
return FAIL;
}
if (level == -1) {
level = zend_stack_count(&self->call_stack);
}
i = MIN(level, sizeof(pipe_buffer) / 2 - 1);
pipe_buffer[i*2] = '\0';
for (;i > 0;i--) {
pipe_buffer[i*2 - 1] = ' ';
pipe_buffer[i*2 - 2] = '|';
}
if (flags & MYSQLND_DEBUG_DUMP_PID) {
snprintf(pid_buffer, sizeof(pid_buffer) - 1, "%5u: ", self->pid);
pid_buffer[sizeof(pid_buffer) - 1 ] = '\0';
}
if (flags & MYSQLND_DEBUG_DUMP_TIME) {
/* The following from FF's DBUG library, which is in the public domain */
#if defined(PHP_WIN32)
/* FIXME This doesn't give microseconds as in Unix case, and the resolution is
in system ticks, 10 ms intervals. See my_getsystime.c for high res */
SYSTEMTIME loc_t;
GetLocalTime(&loc_t);
snprintf(time_buffer, sizeof(time_buffer) - 1,
/* "%04d-%02d-%02d " */
"%02d:%02d:%02d.%06d ",
/*tm_p->tm_year + 1900, tm_p->tm_mon + 1, tm_p->tm_mday,*/
loc_t.wHour, loc_t.wMinute, loc_t.wSecond, loc_t.wMilliseconds);
time_buffer[sizeof(time_buffer) - 1 ] = '\0';
#else
struct timeval tv;
struct tm *tm_p;
if (gettimeofday(&tv, NULL) != -1) {
if ((tm_p= localtime((const time_t *)&tv.tv_sec))) {
snprintf(time_buffer, sizeof(time_buffer) - 1,
/* "%04d-%02d-%02d " */
"%02d:%02d:%02d.%06d ",
/*tm_p->tm_year + 1900, tm_p->tm_mon + 1, tm_p->tm_mday,*/
tm_p->tm_hour, tm_p->tm_min, tm_p->tm_sec,
(int) (tv.tv_usec));
time_buffer[sizeof(time_buffer) - 1 ] = '\0';
}
}
#endif
}
if (flags & MYSQLND_DEBUG_DUMP_FILE) {
snprintf(file_buffer, sizeof(file_buffer) - 1, "%14s: ", file);
file_buffer[sizeof(file_buffer) - 1 ] = '\0';
}
if (flags & MYSQLND_DEBUG_DUMP_LINE) {
snprintf(line_buffer, sizeof(line_buffer) - 1, "%5u: ", line);
line_buffer[sizeof(line_buffer) - 1 ] = '\0';
}
if (flags & MYSQLND_DEBUG_DUMP_LEVEL) {
snprintf(level_buffer, sizeof(level_buffer) - 1, "%4u: ", level);
level_buffer[sizeof(level_buffer) - 1 ] = '\0';
}
message_line_len = mnd_sprintf(&message_line, 0, "%s%s%s%s%s%s%s%s\n",
flags & MYSQLND_DEBUG_DUMP_PID? pid_buffer:"",
flags & MYSQLND_DEBUG_DUMP_TIME? time_buffer:"",
flags & MYSQLND_DEBUG_DUMP_FILE? file_buffer:"",
flags & MYSQLND_DEBUG_DUMP_LINE? line_buffer:"",
flags & MYSQLND_DEBUG_DUMP_LEVEL? level_buffer:"",
pipe_buffer, type? type:"", message);
ret = php_stream_write(self->stream, message_line, message_line_len)? PASS:FAIL;
mnd_sprintf_free(message_line);
if (flags & MYSQLND_DEBUG_FLUSH) {
self->m->close(self);
self->m->open(self, TRUE);
}
return ret;
}
/* }}} */
/* {{{ mysqlnd_debug::log_va */
static enum_func_status
MYSQLND_METHOD(mysqlnd_debug, log_va)(MYSQLND_DEBUG *self,
unsigned int line, const char * const file,
unsigned int level, const char * type,
const char *format, ...)
{
char pipe_buffer[512];
int i;
enum_func_status ret;
char * message_line, *buffer;
unsigned int message_line_len;
va_list args;
unsigned int flags = self->flags;
char pid_buffer[10], time_buffer[30], file_buffer[200],
line_buffer[6], level_buffer[7];
if (!self->stream && FAIL == self->m->open(self, FALSE)) {
return FAIL;
}
if (level == -1) {
level = zend_stack_count(&self->call_stack);
}
i = MIN(level, sizeof(pipe_buffer) / 2 - 1);
pipe_buffer[i*2] = '\0';
for (;i > 0;i--) {
pipe_buffer[i*2 - 1] = ' ';
pipe_buffer[i*2 - 2] = '|';
}
if (flags & MYSQLND_DEBUG_DUMP_PID) {
snprintf(pid_buffer, sizeof(pid_buffer) - 1, "%5u: ", self->pid);
pid_buffer[sizeof(pid_buffer) - 1 ] = '\0';
}
if (flags & MYSQLND_DEBUG_DUMP_TIME) {
/* The following from FF's DBUG library, which is in the public domain */
#if defined(PHP_WIN32)
/* FIXME This doesn't give microseconds as in Unix case, and the resolution is
in system ticks, 10 ms intervals. See my_getsystime.c for high res */
SYSTEMTIME loc_t;
GetLocalTime(&loc_t);
snprintf(time_buffer, sizeof(time_buffer) - 1,
/* "%04d-%02d-%02d " */
"%02d:%02d:%02d.%06d ",
/*tm_p->tm_year + 1900, tm_p->tm_mon + 1, tm_p->tm_mday,*/
loc_t.wHour, loc_t.wMinute, loc_t.wSecond, loc_t.wMilliseconds);
time_buffer[sizeof(time_buffer) - 1 ] = '\0';
#else
struct timeval tv;
struct tm *tm_p;
if (gettimeofday(&tv, NULL) != -1) {
if ((tm_p= localtime((const time_t *)&tv.tv_sec))) {
snprintf(time_buffer, sizeof(time_buffer) - 1,
/* "%04d-%02d-%02d " */
"%02d:%02d:%02d.%06d ",
/*tm_p->tm_year + 1900, tm_p->tm_mon + 1, tm_p->tm_mday,*/
tm_p->tm_hour, tm_p->tm_min, tm_p->tm_sec,
(int) (tv.tv_usec));
time_buffer[sizeof(time_buffer) - 1 ] = '\0';
}
}
#endif
}
if (flags & MYSQLND_DEBUG_DUMP_FILE) {
snprintf(file_buffer, sizeof(file_buffer) - 1, "%14s: ", file);
file_buffer[sizeof(file_buffer) - 1 ] = '\0';
}
if (flags & MYSQLND_DEBUG_DUMP_LINE) {
snprintf(line_buffer, sizeof(line_buffer) - 1, "%5u: ", line);
line_buffer[sizeof(line_buffer) - 1 ] = '\0';
}
if (flags & MYSQLND_DEBUG_DUMP_LEVEL) {
snprintf(level_buffer, sizeof(level_buffer) - 1, "%4u: ", level);
level_buffer[sizeof(level_buffer) - 1 ] = '\0';
}
va_start(args, format);
mnd_vsprintf(&buffer, 0, format, args);
va_end(args);
message_line_len = mnd_sprintf(&message_line, 0, "%s%s%s%s%s%s%s%s\n",
flags & MYSQLND_DEBUG_DUMP_PID? pid_buffer:"",
flags & MYSQLND_DEBUG_DUMP_TIME? time_buffer:"",
flags & MYSQLND_DEBUG_DUMP_FILE? file_buffer:"",
flags & MYSQLND_DEBUG_DUMP_LINE? line_buffer:"",
flags & MYSQLND_DEBUG_DUMP_LEVEL? level_buffer:"",
pipe_buffer, type? type:"", buffer);
mnd_sprintf_free(buffer);
ret = php_stream_write(self->stream, message_line, message_line_len)? PASS:FAIL;
mnd_sprintf_free(message_line);
if (flags & MYSQLND_DEBUG_FLUSH) {
self->m->close(self);
self->m->open(self, TRUE);
}
return ret;
}
/* }}} */
/* FALSE - The DBG_ calls won't be traced, TRUE - will be traced */
/* {{{ mysqlnd_debug::func_enter */
static zend_bool
MYSQLND_METHOD(mysqlnd_debug, func_enter)(MYSQLND_DEBUG * self,
unsigned int line, const char * const file,
const char * const func_name, unsigned int func_name_len)
{
if ((self->flags & MYSQLND_DEBUG_DUMP_TRACE) == 0 || self->file_name == NULL) {
return FALSE;
}
if ((uint32_t) zend_stack_count(&self->call_stack) >= self->nest_level_limit) {
return FALSE;
}
if ((self->flags & MYSQLND_DEBUG_TRACE_MEMORY_CALLS) == 0 && self->skip_functions) {
const char ** p = self->skip_functions;
while (*p) {
if (*p == func_name) {
zend_stack_push(&self->call_stack, &mysqlnd_debug_empty_string);
#ifndef MYSQLND_PROFILING_DISABLED
if (self->flags & MYSQLND_DEBUG_PROFILE_CALLS) {
uint64_t some_time = 0;
zend_stack_push(&self->call_time_stack, &some_time);
}
#endif
return FALSE;
}
p++;
}
}
zend_stack_push(&self->call_stack, &func_name);
#ifndef MYSQLND_PROFILING_DISABLED
if (self->flags & MYSQLND_DEBUG_PROFILE_CALLS) {
uint64_t some_time = 0;
zend_stack_push(&self->call_time_stack, &some_time);
}
#endif
if (zend_hash_num_elements(&self->not_filtered_functions) &&
0 == zend_hash_str_exists(&self->not_filtered_functions, func_name, strlen(func_name)))
{
return FALSE;
}
self->m->log_va(self, line, file, zend_stack_count(&self->call_stack) - 1, NULL, ">%s", func_name);
return TRUE;
}
/* }}} */
#ifndef MYSQLND_PROFILING_DISABLED
struct st_mysqlnd_dbg_function_profile {
uint64_t calls;
uint64_t min_own;
uint64_t max_own;
uint64_t avg_own;
uint64_t own_underporm_calls;
uint64_t min_in_calls;
uint64_t max_in_calls;
uint64_t avg_in_calls;
uint64_t in_calls_underporm_calls;
uint64_t min_total;
uint64_t max_total;
uint64_t avg_total;
uint64_t total_underporm_calls;
};
#define PROFILE_UNDERPERFORM_THRESHOLD 10
#endif
/* {{{ mysqlnd_debug::func_leave */
static enum_func_status
MYSQLND_METHOD(mysqlnd_debug, func_leave)(MYSQLND_DEBUG * self, unsigned int line, const char * const file, uint64_t call_time)
{
char **func_name;
uint64_t * parent_non_own_time_ptr = NULL, * mine_non_own_time_ptr = NULL;
uint64_t mine_non_own_time = 0;
zend_bool profile_calls = self->flags & MYSQLND_DEBUG_PROFILE_CALLS? TRUE:FALSE;
if ((self->flags & MYSQLND_DEBUG_DUMP_TRACE) == 0 || self->file_name == NULL) {
return PASS;
}
if ((uint32_t) zend_stack_count(&self->call_stack) >= self->nest_level_limit) {
return PASS;
}
func_name = zend_stack_top(&self->call_stack);
#ifndef MYSQLND_PROFILING_DISABLED
if (profile_calls) {
mine_non_own_time_ptr = zend_stack_top(&self->call_time_stack);
mine_non_own_time = *mine_non_own_time_ptr;
zend_stack_del_top(&self->call_time_stack); /* callee - removing ourselves */
}
#endif
if ((*func_name)[0] == '\0') {
; /* don't log that function */
} else if (!zend_hash_num_elements(&self->not_filtered_functions) ||
1 == zend_hash_str_exists(&self->not_filtered_functions, (*func_name), strlen((*func_name))))
{
#ifndef MYSQLND_PROFILING_DISABLED
if (FALSE == profile_calls) {
#endif
self->m->log_va(self, line, file, zend_stack_count(&self->call_stack) - 1, NULL, "<%s", *func_name);
#ifndef MYSQLND_PROFILING_DISABLED
} else {
struct st_mysqlnd_dbg_function_profile f_profile_stack = {0};
struct st_mysqlnd_dbg_function_profile * f_profile = NULL;
uint64_t own_time = call_time - mine_non_own_time;
uint32_t func_name_len = strlen(*func_name);
self->m->log_va(self, line, file, zend_stack_count(&self->call_stack) - 1, NULL, "<%s (total=%u own=%u in_calls=%u)",
*func_name, (unsigned int) call_time, (unsigned int) own_time, (unsigned int) mine_non_own_time
);
if ((f_profile = zend_hash_str_find_ptr(&self->function_profiles, *func_name, func_name_len)) != NULL) {
/* found */
if (f_profile) {
if (mine_non_own_time < f_profile->min_in_calls) {
f_profile->min_in_calls = mine_non_own_time;
} else if (mine_non_own_time > f_profile->max_in_calls) {
f_profile->max_in_calls = mine_non_own_time;
}
f_profile->avg_in_calls = (f_profile->avg_in_calls * f_profile->calls + mine_non_own_time) / (f_profile->calls + 1);
if (own_time < f_profile->min_own) {
f_profile->min_own = own_time;
} else if (own_time > f_profile->max_own) {
f_profile->max_own = own_time;
}
f_profile->avg_own = (f_profile->avg_own * f_profile->calls + own_time) / (f_profile->calls + 1);
if (call_time < f_profile->min_total) {
f_profile->min_total = call_time;
} else if (call_time > f_profile->max_total) {
f_profile->max_total = call_time;
}
f_profile->avg_total = (f_profile->avg_total * f_profile->calls + call_time) / (f_profile->calls + 1);
++f_profile->calls;
if (f_profile->calls > PROFILE_UNDERPERFORM_THRESHOLD) {
if (f_profile->avg_in_calls < mine_non_own_time) {
f_profile->in_calls_underporm_calls++;
}
if (f_profile->avg_own < own_time) {
f_profile->own_underporm_calls++;
}
if (f_profile->avg_total < call_time) {
f_profile->total_underporm_calls++;
}
}
}
} else {
/* add */
f_profile = &f_profile_stack;
f_profile->min_in_calls = f_profile->max_in_calls = f_profile->avg_in_calls = mine_non_own_time;
f_profile->min_total = f_profile->max_total = f_profile->avg_total = call_time;
f_profile->min_own = f_profile->max_own = f_profile->avg_own = own_time;
f_profile->calls = 1;
zend_hash_str_add_mem(&self->function_profiles, *func_name, func_name_len, f_profile, sizeof(struct st_mysqlnd_dbg_function_profile));
}
if ((uint32_t) zend_stack_count(&self->call_time_stack)) {
uint64_t parent_non_own_time = 0;
parent_non_own_time_ptr = zend_stack_top(&self->call_time_stack);
parent_non_own_time = *parent_non_own_time_ptr;
parent_non_own_time += call_time;
zend_stack_del_top(&self->call_time_stack); /* the caller */
zend_stack_push(&self->call_time_stack, &parent_non_own_time); /* add back the caller */
}
}
#endif
}
return zend_stack_del_top(&self->call_stack) == SUCCESS? PASS:FAIL;
}
/* }}} */
/* {{{ mysqlnd_debug::close */
static enum_func_status
MYSQLND_METHOD(mysqlnd_debug, close)(MYSQLND_DEBUG * self)
{
if (self->stream) {
#ifndef MYSQLND_PROFILING_DISABLED
if (!(self->flags & MYSQLND_DEBUG_FLUSH) && (self->flags & MYSQLND_DEBUG_PROFILE_CALLS)) {
struct st_mysqlnd_dbg_function_profile * f_profile;
zend_string *string_key = NULL;
self->m->log_va(self, __LINE__, __FILE__, 0, "info : ",
"number of functions: %d", zend_hash_num_elements(&self->function_profiles));
ZEND_HASH_FOREACH_STR_KEY_PTR(&self->function_profiles, string_key, f_profile) {
self->m->log_va(self, __LINE__, __FILE__, -1, "info : ",
"%-40s\tcalls=%5llu own_slow=%5llu in_calls_slow=%5llu total_slow=%5llu"
" min_own=%5llu max_own=%7llu avg_own=%7llu "
" min_in_calls=%5llu max_in_calls=%7llu avg_in_calls=%7llu"
" min_total=%5llu max_total=%7llu avg_total=%7llu"
,ZSTR_VAL(string_key)
,(uint64_t) f_profile->calls
,(uint64_t) f_profile->own_underporm_calls
,(uint64_t) f_profile->in_calls_underporm_calls
,(uint64_t) f_profile->total_underporm_calls
,(uint64_t) f_profile->min_own
,(uint64_t) f_profile->max_own
,(uint64_t) f_profile->avg_own
,(uint64_t) f_profile->min_in_calls
,(uint64_t) f_profile->max_in_calls
,(uint64_t) f_profile->avg_in_calls
,(uint64_t) f_profile->min_total
,(uint64_t) f_profile->max_total
,(uint64_t) f_profile->avg_total
);
} ZEND_HASH_FOREACH_END();
}
#endif
php_stream_close(self->stream);
self->stream = NULL;
}
/* no DBG_RETURN please */
return PASS;
}
/* }}} */
/* {{{ mysqlnd_res_meta::free */
static enum_func_status
MYSQLND_METHOD(mysqlnd_debug, free)(MYSQLND_DEBUG * self)
{
if (self->file_name && self->file_name != mysqlnd_debug_default_trace_file) {
efree(self->file_name);
self->file_name = NULL;
}
zend_stack_destroy(&self->call_stack);
zend_stack_destroy(&self->call_time_stack);
zend_hash_destroy(&self->not_filtered_functions);
zend_hash_destroy(&self->function_profiles);
free(self);
return PASS;
}
/* }}} */
enum mysqlnd_debug_parser_state
{
PARSER_WAIT_MODIFIER,
PARSER_WAIT_COLON,
PARSER_WAIT_VALUE
};
/* {{{ mysqlnd_res_meta::set_mode */
static void
MYSQLND_METHOD(mysqlnd_debug, set_mode)(MYSQLND_DEBUG * self, const char * const mode)
{
unsigned int mode_len, i;
enum mysqlnd_debug_parser_state state = PARSER_WAIT_MODIFIER;
mode_len = mode? strlen(mode) : 0;
self->flags = 0;
self->nest_level_limit = 0;
if (self->file_name && self->file_name != mysqlnd_debug_default_trace_file) {
efree(self->file_name);
self->file_name = NULL;
}
if (zend_hash_num_elements(&self->not_filtered_functions)) {
zend_hash_destroy(&self->not_filtered_functions);
zend_hash_init(&self->not_filtered_functions, 0, NULL, NULL, 0);
}
for (i = 0; i < mode_len; i++) {
switch (mode[i]) {
case 'O':
case 'A':
self->flags |= MYSQLND_DEBUG_FLUSH;
case 'a':
case 'o':
if (mode[i] == 'a' || mode[i] == 'A') {
self->flags |= MYSQLND_DEBUG_APPEND;
}
if (i + 1 < mode_len && mode[i+1] == ',') {
unsigned int j = i + 2;
#ifdef PHP_WIN32
if (i+4 < mode_len && mode[i+3] == ':' && (mode[i+4] == '\\' || mode[i+4] == '/')) {
j = i + 5;
}
#endif
while (j < mode_len) {
if (mode[j] == ':') {
break;
}
j++;
}
if (j > i + 2) {
self->file_name = estrndup(mode + i + 2, j - i - 2);
}
i = j;
} else {
if (!self->file_name)
self->file_name = (char *) mysqlnd_debug_default_trace_file;
}
state = PARSER_WAIT_COLON;
break;
case ':':
#if 0
if (state != PARSER_WAIT_COLON) {
php_error_docref(NULL, E_WARNING, "Consecutive semicolons at position %u", i);
}
#endif
state = PARSER_WAIT_MODIFIER;
break;
case 'f': /* limit output to these functions */
if (i + 1 < mode_len && mode[i+1] == ',') {
unsigned int j = i + 2;
i++;
while (j < mode_len) {
if (mode[j] == ':') {
/* function names with :: */
if ((j + 1 < mode_len) && mode[j+1] == ':') {
j += 2;
continue;
}
}
if (mode[j] == ',' || mode[j] == ':') {
if (j > i + 2) {
char func_name[1024];
unsigned int func_name_len = MIN(sizeof(func_name) - 1, j - i - 1);
memcpy(func_name, mode + i + 1, func_name_len);
func_name[func_name_len] = '\0';
zend_hash_str_add_empty_element(&self->not_filtered_functions,
func_name, func_name_len);
i = j;
}
if (mode[j] == ':') {
break;
}
}
j++;
}
i = j;
} else {
#if 0
php_error_docref(NULL, E_WARNING,
"Expected list of functions for '%c' found none", mode[i]);
#endif
}
state = PARSER_WAIT_COLON;
break;
case 'D':
case 'd':
case 'g':
case 'p':
/* unsupported */
if ((i + 1) < mode_len && mode[i+1] == ',') {
i+= 2;
while (i < mode_len) {
if (mode[i] == ':') {
break;
}
i++;
}
}
state = PARSER_WAIT_COLON;
break;
case 'F':
self->flags |= MYSQLND_DEBUG_DUMP_FILE;
state = PARSER_WAIT_COLON;
break;
case 'i':
self->flags |= MYSQLND_DEBUG_DUMP_PID;
state = PARSER_WAIT_COLON;
break;
case 'L':
self->flags |= MYSQLND_DEBUG_DUMP_LINE;
state = PARSER_WAIT_COLON;
break;
case 'n':
self->flags |= MYSQLND_DEBUG_DUMP_LEVEL;
state = PARSER_WAIT_COLON;
break;
case 't':
if (mode[i+1] == ',') {
unsigned int j = i + 2;
while (j < mode_len) {
if (mode[j] == ':') {
break;
}
j++;
}
if (j > i + 2) {
char *value_str = estrndup(mode + i + 2, j - i - 2);
self->nest_level_limit = atoi(value_str);
efree(value_str);
}
i = j;
} else {
self->nest_level_limit = 200; /* default value for FF DBUG */
}
self->flags |= MYSQLND_DEBUG_DUMP_TRACE;
state = PARSER_WAIT_COLON;
break;
case 'T':
self->flags |= MYSQLND_DEBUG_DUMP_TIME;
state = PARSER_WAIT_COLON;
break;
case 'N':
case 'P':
case 'r':
case 'S':
state = PARSER_WAIT_COLON;
break;
case 'm': /* mysqlnd extension - trace memory functions */
self->flags |= MYSQLND_DEBUG_TRACE_MEMORY_CALLS;
state = PARSER_WAIT_COLON;
break;
case 'x': /* mysqlnd extension - profile calls */
self->flags |= MYSQLND_DEBUG_PROFILE_CALLS;
state = PARSER_WAIT_COLON;
break;
default:
if (state == PARSER_WAIT_MODIFIER) {
#if 0
php_error_docref(NULL, E_WARNING, "Unrecognized format '%c'", mode[i]);
#endif
if (i+1 < mode_len && mode[i+1] == ',') {
i+= 2;
while (i < mode_len) {
if (mode[i] == ':') {
break;
}
i++;
}
}
state = PARSER_WAIT_COLON;
} else if (state == PARSER_WAIT_COLON) {
#if 0
php_error_docref(NULL, E_WARNING, "Colon expected, '%c' found", mode[i]);
#endif
}
break;
}
}
}
/* }}} */
MYSQLND_CLASS_METHODS_START(mysqlnd_debug)
MYSQLND_METHOD(mysqlnd_debug, open),
MYSQLND_METHOD(mysqlnd_debug, set_mode),
MYSQLND_METHOD(mysqlnd_debug, log),
MYSQLND_METHOD(mysqlnd_debug, log_va),
MYSQLND_METHOD(mysqlnd_debug, func_enter),
MYSQLND_METHOD(mysqlnd_debug, func_leave),
MYSQLND_METHOD(mysqlnd_debug, close),
MYSQLND_METHOD(mysqlnd_debug, free),
MYSQLND_CLASS_METHODS_END;
static void free_ptr(zval *zv) {
efree(Z_PTR_P(zv));
}
/* {{{ mysqlnd_debug_init */
PHPAPI MYSQLND_DEBUG *
mysqlnd_debug_init(const char * skip_functions[])
{
MYSQLND_DEBUG *ret = calloc(1, sizeof(MYSQLND_DEBUG));
ret->nest_level_limit = 0;
ret->pid = getpid();
zend_stack_init(&ret->call_stack, sizeof(char *));
zend_stack_init(&ret->call_time_stack, sizeof(uint64_t));
zend_hash_init(&ret->not_filtered_functions, 0, NULL, NULL, 0);
zend_hash_init(&ret->function_profiles, 0, NULL, free_ptr, 0);
ret->m = & mysqlnd_mysqlnd_debug_methods;
ret->skip_functions = skip_functions;
return ret;
}
/* }}} */
/* {{{ mysqlnd_debug */
PHPAPI void mysqlnd_debug(const char * mode)
{
#if PHP_DEBUG
MYSQLND_DEBUG * dbg = MYSQLND_G(dbg);
if (!dbg) {
struct st_mysqlnd_plugin_trace_log * trace_log_plugin = mysqlnd_plugin_find("debug_trace");
if (trace_log_plugin) {
dbg = trace_log_plugin->methods.trace_instance_init(mysqlnd_debug_std_no_trace_funcs);
if (!dbg) {
return;
}
MYSQLND_G(dbg) = dbg;
}
}
if (dbg) {
dbg->m->close(dbg);
dbg->m->set_mode(dbg, mode);
while (zend_stack_count(&dbg->call_stack)) {
zend_stack_del_top(&dbg->call_stack);
}
while (zend_stack_count(&dbg->call_time_stack)) {
zend_stack_del_top(&dbg->call_time_stack);
}
}
#endif
}
/* }}} */
static struct st_mysqlnd_plugin_trace_log mysqlnd_plugin_trace_log_plugin =
{
{
MYSQLND_PLUGIN_API_VERSION,
"debug_trace",
MYSQLND_VERSION_ID,
PHP_MYSQLND_VERSION,
"PHP License 3.01",
"Andrey Hristov <andrey@php.net>, Ulf Wendel <uw@php.net>, Georg Richter <georg@php.net>",
{
NULL, /* no statistics , will be filled later if there are some */
NULL, /* no statistics */
},
{
NULL /* plugin shutdown */
}
},
{/* methods */
mysqlnd_debug_init,
}
};
/* {{{ mysqlnd_debug_trace_plugin_register */
void
mysqlnd_debug_trace_plugin_register(void)
{
mysqlnd_plugin_register_ex((struct st_mysqlnd_plugin_header *) &mysqlnd_plugin_trace_log_plugin);
}
/* }}} */
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