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Add gluecode for systrace

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Summary: @​public

Add gluecode to allow use to systrace as the backend of RCTProfile

Reviewed By: @jspahrsummers

Differential Revision: D2439181
This commit is contained in:
Tadeu Zagallo 2015-09-23 11:59:44 -07:00 committed by facebook-github-bot-6
parent dcf245a9a2
commit 98378cab18
2 changed files with 159 additions and 41 deletions
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28
React/Base/RCTProfile.h
View File

@ -125,6 +125,34 @@ RCT_EXTERN void RCTProfileUnhookModules(RCTBridge *);
*/
RCT_EXTERN void RCTProfileSendResult(RCTBridge *bridge, NSString *route, NSData *profielData);
/**
* Systrace gluecode
*
* allow to use systrace to back RCTProfile
*/
typedef struct {
const char *key;
int key_len;
const char *value;
int value_len;
} systrace_arg_t;
typedef struct {
void (*start)(uint64_t enabledTags, char *buffer, size_t bufferSize);
void (*stop)(void);
void (*begin_section)(uint64_t tag, const char *name, size_t numArgs, systrace_arg_t *args);
void (*end_section)(uint64_t tag, size_t numArgs, systrace_arg_t *args);
void (*begin_async_section)(uint64_t tag, const char *name, int cookie, size_t numArgs, systrace_arg_t *args);
void (*end_async_section)(uint64_t tag, const char *name, int cookie, size_t numArgs, systrace_arg_t *args);
void (*instant_section)(uint64_t tag, const char *name, char scope);
} RCTProfileCallbacks;
RCT_EXTERN void RCTProfileRegisterCallbacks(RCTProfileCallbacks *);
#else
#define RCTProfileBeginFlowEvent()

172
React/Base/RCTProfile.m
View File

@ -35,11 +35,11 @@ NSString *const RCTProfilePrefix = @"rct_profile_";
#pragma mark - Variables
NSDictionary *RCTProfileInfo;
NSUInteger RCTProfileEventID = 0;
NSMutableDictionary *RCTProfileOngoingEvents;
NSTimeInterval RCTProfileStartTime;
NSRecursiveLock *_RCTProfileLock;
static BOOL RCTProfileProfiling;
static NSDictionary *RCTProfileInfo;
static NSMutableDictionary *RCTProfileOngoingEvents;
static NSTimeInterval RCTProfileStartTime;
static NSUInteger RCTProfileEventID = 0;
#pragma mark - Macros
@ -56,12 +56,55 @@ if (!RCTProfileIsProfiling()) { \
}
#define RCTProfileLock(...) \
[_RCTProfileLock lock]; \
[_RCTProfileLock() lock]; \
__VA_ARGS__ \
[_RCTProfileLock unlock]
[_RCTProfileLock() unlock]
#pragma mark - systrace glue code
static RCTProfileCallbacks *callbacks;
static char *systrace_buffer;
static systrace_arg_t *RCTProfileSystraceArgsFromNSDictionary(NSDictionary *args)
{
if (args.count == 0) {
return NULL;
}
systrace_arg_t *systrace_args = malloc(sizeof(systrace_arg_t) * args.count);
__block size_t i = 0;
[args enumerateKeysAndObjectsUsingBlock:^(id key, id value, __unused BOOL *stop) {
const char *keyc = [key description].UTF8String;
systrace_args[i].key = keyc;
systrace_args[i].key_len = (int)strlen(keyc);
const char *valuec = RCTJSONStringify(value, nil).UTF8String;
systrace_args[i].value = valuec;
systrace_args[i].value_len = (int)strlen(valuec);
i++;
}];
return systrace_args;
}
void RCTProfileRegisterCallbacks(RCTProfileCallbacks *cb)
{
callbacks = cb;
}
#pragma mark - Private Helpers
static NSLock *_RCTProfileLock()
{
static dispatch_once_t token;
static NSLock *lock;
dispatch_once(&token, ^{
lock = [NSLock new];
lock.name = @"RCTProfileLock";
});
return lock;
}
static NSNumber *RCTProfileTimestamp(NSTimeInterval timestamp)
{
return @((timestamp - RCTProfileStartTime) * 1e6);
@ -215,28 +258,28 @@ void RCTProfileUnhookModules(RCTBridge *bridge)
BOOL RCTProfileIsProfiling(void)
{
RCTProfileLock(
BOOL profiling = RCTProfileInfo != nil;
);
return profiling;
return RCTProfileProfiling;
}
void RCTProfileInit(RCTBridge *bridge)
{
RCTProfileHookModules(bridge);
RCTProfileProfiling = YES;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
_RCTProfileLock = [NSRecursiveLock new];
});
RCTProfileLock(
RCTProfileStartTime = CACurrentMediaTime();
RCTProfileOngoingEvents = [NSMutableDictionary new];
RCTProfileInfo = @{
RCTProfileTraceEvents: [NSMutableArray new],
RCTProfileSamples: [NSMutableArray new],
};
);
if (callbacks != NULL) {
size_t buffer_size = 1 << 22;
systrace_buffer = calloc(1, buffer_size);
callbacks->start(~((uint64_t)0), systrace_buffer, buffer_size);
} else {
RCTProfileLock(
RCTProfileStartTime = CACurrentMediaTime();
RCTProfileOngoingEvents = [NSMutableDictionary new];
RCTProfileInfo = @{
RCTProfileTraceEvents: [NSMutableArray new],
RCTProfileSamples: [NSMutableArray new],
};
);
}
[[NSNotificationCenter defaultCenter] postNotificationName:RCTProfileDidStartProfiling
object:nil];
@ -247,16 +290,26 @@ NSString *RCTProfileEnd(RCTBridge *bridge)
[[NSNotificationCenter defaultCenter] postNotificationName:RCTProfileDidEndProfiling
object:nil];
RCTProfileProfiling = NO;
RCTProfileLock(
NSString *log = RCTJSONStringify(RCTProfileInfo, NULL);
RCTProfileEventID = 0;
RCTProfileInfo = nil;
RCTProfileOngoingEvents = nil;
RCTProfileUnhookModules(bridge);
);
RCTProfileUnhookModules(bridge);
if (callbacks != NULL) {
callbacks->stop();
return log;
return @(systrace_buffer);
} else {
RCTProfileLock(
NSString *log = RCTJSONStringify(RCTProfileInfo, NULL);
RCTProfileEventID = 0;
RCTProfileInfo = nil;
RCTProfileOngoingEvents = nil;
);
return log;
}
}
static NSMutableArray *RCTProfileGetThreadEvents(void)
@ -273,6 +326,12 @@ static NSMutableArray *RCTProfileGetThreadEvents(void)
void RCTProfileBeginEvent(uint64_t tag, NSString *name, NSDictionary *args)
{
CHECK();
if (callbacks != NULL) {
callbacks->begin_section(tag, name.UTF8String, args.count, RCTProfileSystraceArgsFromNSDictionary(args));
return;
}
NSMutableArray *events = RCTProfileGetThreadEvents();
[events addObject:@[
RCTProfileTimestamp(CACurrentMediaTime()),
@ -283,12 +342,17 @@ void RCTProfileBeginEvent(uint64_t tag, NSString *name, NSDictionary *args)
}
void RCTProfileEndEvent(
__unused uint64_t tag,
uint64_t tag,
NSString *category,
NSDictionary *args
) {
CHECK();
if (callbacks != NULL) {
callbacks->end_section(tag, args.count, RCTProfileSystraceArgsFromNSDictionary(args));
return;
}
NSMutableArray *events = RCTProfileGetThreadEvents();
NSArray *event = events.lastObject;
[events removeLastObject];
@ -312,7 +376,7 @@ void RCTProfileEndEvent(
}
int RCTProfileBeginAsyncEvent(
__unused uint64_t tag,
uint64_t tag,
NSString *name,
NSDictionary *args
) {
@ -320,25 +384,35 @@ int RCTProfileBeginAsyncEvent(
static int eventID = 0;
RCTProfileLock(
RCTProfileOngoingEvents[@(eventID)] = @[
RCTProfileTimestamp(CACurrentMediaTime()),
name,
RCTNullIfNil(args),
];
);
if (callbacks != NULL) {
callbacks->begin_async_section(tag, name.UTF8String, eventID, args.count, RCTProfileSystraceArgsFromNSDictionary(args));
} else {
RCTProfileLock(
RCTProfileOngoingEvents[@(eventID)] = @[
RCTProfileTimestamp(CACurrentMediaTime()),
name,
RCTNullIfNil(args),
];
);
}
return eventID++;
}
void RCTProfileEndAsyncEvent(
__unused uint64_t tag,
uint64_t tag,
NSString *category,
int cookie,
__unused NSString *name,
NSString *name,
NSDictionary *args
) {
CHECK();
if (callbacks != NULL) {
callbacks->end_async_section(tag, name.UTF8String, cookie, args.count, RCTProfileSystraceArgsFromNSDictionary(args));
return;
}
RCTProfileLock(
NSArray *event = RCTProfileOngoingEvents[@(cookie)];
if (event) {
@ -358,12 +432,17 @@ void RCTProfileEndAsyncEvent(
}
void RCTProfileImmediateEvent(
__unused uint64_t tag,
uint64_t tag,
NSString *name,
char scope
) {
CHECK();
if (callbacks != NULL) {
callbacks->instant_section(tag, name.UTF8String, scope);
return;
}
RCTProfileLock(
RCTProfileAddEvent(RCTProfileTraceEvents,
@"name": name,
@ -380,6 +459,12 @@ NSNumber *_RCTProfileBeginFlowEvent(void)
static NSUInteger flowID = 0;
CHECK(@0);
if (callbacks != NULL) {
// flow events not supported yet
return @0;
}
RCTProfileAddEvent(RCTProfileTraceEvents,
@"name": @"flow",
@"id": @(++flowID),
@ -394,6 +479,11 @@ NSNumber *_RCTProfileBeginFlowEvent(void)
void _RCTProfileEndFlowEvent(NSNumber *flowID)
{
CHECK();
if (callbacks != NULL) {
return;
}
RCTProfileAddEvent(RCTProfileTraceEvents,
@"name": @"flow",
@"id": flowID,