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Code Wiki Activity

Clean up threading

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* Rename everything.
    * Strip J prefix.
    * Change UpperCamelCase functions to lowerCamelCase.
  * Remove global (!) semaphore count mutex on OSX.
  * Remove semaphore count getter (unused, unsafe, depended on internal
    API functions on Windows, and used a hack on OSX).
  * Add `Atomic<type>`.
  * Make `Thread` handle thread names.
  * Add support for C++11 multi-threading.
  * Combine pthread and win32 sources.
  * Remove `ThreadStarted` (unused, unneeded).
  * Move some includes from the headers to the sources.
  * Move all of `Event` into its header (allows inlining with no new includes).
  * Make `Event` use `Semaphore` (except on Windows).
  * Move some porting functions into `Thread`.
  * Integrate logging with `Thread`.
  * Add threading test.
This commit is contained in:
ShadowNinja 2015-04-07 06:13:12 -04:00
parent 6a1047d8c1
commit e4bff8be94
77 changed files with 1594 additions and 2046 deletions
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38
src/httpfetch.cpp
View file

@ -25,7 +25,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include <list>
#include <map>
#include <errno.h>
#include "jthread/jevent.h"
#include "threading/event.h"
#include "config.h"
#include "exceptions.h"
#include "debug.h"
@ -35,7 +35,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "version.h"
#include "settings.h"
JMutex g_httpfetch_mutex;
Mutex g_httpfetch_mutex;
std::map<unsigned long, std::queue<HTTPFetchResult> > g_httpfetch_results;
HTTPFetchRequest::HTTPFetchRequest()
@ -55,7 +55,7 @@ static void httpfetch_deliver_result(const HTTPFetchResult &fetch_result)
{
unsigned long caller = fetch_result.caller;
if (caller != HTTPFETCH_DISCARD) {
JMutexAutoLock lock(g_httpfetch_mutex);
MutexAutoLock lock(g_httpfetch_mutex);
g_httpfetch_results[caller].push(fetch_result);
}
}
@ -64,7 +64,7 @@ static void httpfetch_request_clear(unsigned long caller);
unsigned long httpfetch_caller_alloc()
{
JMutexAutoLock lock(g_httpfetch_mutex);
MutexAutoLock lock(g_httpfetch_mutex);
// Check each caller ID except HTTPFETCH_DISCARD
const unsigned long discard = HTTPFETCH_DISCARD;
@ -91,14 +91,14 @@ void httpfetch_caller_free(unsigned long caller)
httpfetch_request_clear(caller);
if (caller != HTTPFETCH_DISCARD) {
JMutexAutoLock lock(g_httpfetch_mutex);
MutexAutoLock lock(g_httpfetch_mutex);
g_httpfetch_results.erase(caller);
}
}
bool httpfetch_async_get(unsigned long caller, HTTPFetchResult &fetch_result)
{
JMutexAutoLock lock(g_httpfetch_mutex);
MutexAutoLock lock(g_httpfetch_mutex);
// Check that caller exists
std::map<unsigned long, std::queue<HTTPFetchResult> >::iterator
@ -390,7 +390,7 @@ HTTPFetchOngoing::~HTTPFetchOngoing()
}
class CurlFetchThread : public JThread
class CurlFetchThread : public Thread
{
protected:
enum RequestType {
@ -414,7 +414,8 @@ protected:
std::list<HTTPFetchRequest> m_queued_fetches;
public:
CurlFetchThread(int parallel_limit)
CurlFetchThread(int parallel_limit) :
Thread("CurlFetch")
{
if (parallel_limit >= 1)
m_parallel_limit = parallel_limit;
@ -613,14 +614,10 @@ protected:
}
}
void * Thread()
void *run()
{
ThreadStarted();
log_register_thread("CurlFetchThread");
DSTACK(__FUNCTION_NAME);
porting::setThreadName("CurlFetchThread");
CurlHandlePool pool;
m_multi = curl_multi_init();
@ -631,7 +628,7 @@ protected:
FATAL_ERROR_IF(!m_all_ongoing.empty(), "Expected empty");
while (!StopRequested()) {
while (!stopRequested()) {
BEGIN_DEBUG_EXCEPTION_HANDLER
/*
@ -719,9 +716,9 @@ void httpfetch_cleanup()
{
verbosestream<<"httpfetch_cleanup: cleaning up"<<std::endl;
g_httpfetch_thread->Stop();
g_httpfetch_thread->stop();
g_httpfetch_thread->requestWakeUp();
g_httpfetch_thread->Wait();
g_httpfetch_thread->wait();
delete g_httpfetch_thread;
curl_global_cleanup();
@ -730,18 +727,17 @@ void httpfetch_cleanup()
void httpfetch_async(const HTTPFetchRequest &fetch_request)
{
g_httpfetch_thread->requestFetch(fetch_request);
if (!g_httpfetch_thread->IsRunning())
g_httpfetch_thread->Start();
if (!g_httpfetch_thread->isRunning())
g_httpfetch_thread->start();
}
static void httpfetch_request_clear(unsigned long caller)
{
if (g_httpfetch_thread->IsRunning()) {
if (g_httpfetch_thread->isRunning()) {
Event event;
g_httpfetch_thread->requestClear(caller, &event);
event.wait();
}
else {
} else {
g_httpfetch_thread->requestClear(caller, NULL);
}
}