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/* This file is part of RTags (https://github.com/Andersbakken/rtags).
RTags is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
RTags is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with RTags. If not, see <https://www.gnu.org/licenses/>. */
#define RTAGS_SINGLE_THREAD
#include <signal.h>
#include <syslog.h>
#include "ClangIndexer.h"
#include "Project.h"
#include "rct/Log.h"
#include "rct/StopWatch.h"
#include "rct/String.h"
#include "RTags.h"
#include "Server.h"
#include "Source.h"
static void sigHandler(int signal)
{
// this is not really allowed in signal handlers but will mostly work
const String trace = Rct::backtrace();
if (ClangIndexer::serverOpts() & Server::SuspendRPOnCrash) {
int seconds = 2;
printf("@CRASH@Caught signal %d\n%s@CRASH@", signal, trace.constData());
while (true) {
printf("@CRASH@rp crashed, waiting for debugger pid: %d@CRASH@", getpid());
fflush(stdout);
sleep(seconds);
if (seconds < 32)
seconds *= 2;
}
}
fprintf(stderr, "Caught signal %d\n%s\n", signal, trace.constData());
fflush(stderr);
::closelog();
_exit(1);
}
struct SyslogCloser
{
public:
~SyslogCloser()
{
::closelog();
}
};
int main(int argc, char **argv)
{
setvbuf(stdout, nullptr, _IONBF, 0);
setvbuf(stderr, nullptr, _IONBF, 0);
LogLevel logLevel = LogLevel::Error;
Path file;
bool logToSyslog = false;
bool daemon = false;
for (int i=1; i<argc; ++i) {
if (!strcmp(argv[i], "-v") || !strcmp(argv[i], "--verbose")) {
++logLevel;
} else if (!strcmp(argv[i], "--priority")) { // ignore, only for wrapping purposes
++i;
} else if (!strcmp(argv[i], "--log-to-syslog")) {
logToSyslog = true;
} else if (!strcmp(argv[i], "--daemon")) {
daemon = true;
} else {
file = argv[i];
}
}
if (const char *env = getenv("TMPDIR")) { // should really always be set by rdm
Path path = Path(env).ensureTrailingSlash();
path += String::number(getpid());
path.mkdir(Path::Recursive);
setenv("TMPDIR", path.c_str(), 1);
}
if (!daemon)
setenv("LIBCLANG_NOTHREADS", "1", 0);
signal(SIGSEGV, sigHandler);
signal(SIGABRT, sigHandler);
signal(SIGBUS, sigHandler);
signal(SIGALRM, [](int) {
ClangIndexer::transition(ClangIndexer::Stopped);
});
Flags<LogFlag> logFlags = LogStderr;
std::shared_ptr<SyslogCloser> closer;
if (logToSyslog & Server::RPLogToSyslog) {
logFlags |= LogSyslog;
closer.reset(new SyslogCloser);
}
initLogging(argv[0], logFlags, logLevel);
(void)closer;
RTags::initMessages();
auto eventLoop = std::make_shared<EventLoop>();
eventLoop->init(EventLoop::MainEventLoop);
ClangIndexer indexer(daemon ? ClangIndexer::Daemon : ClangIndexer::Normal);
while (true) {
String data;
if (!file.isEmpty()) {
data = file.readAll();
} else {
uint32_t size;
if (!fread(&size, sizeof(size), 1, stdin)) {
error() << "Failed to read from stdin";
return 1;
}
data.resize(size);
if (!fread(&data[0], size, 1, stdin)) {
error() << "Failed to read from stdin";
return 2;
}
// FILE *f = fopen("/tmp/data", "w");
// fwrite(data.constData(), data.size(), 1, f);
// fclose(f);
}
if (!indexer.exec(data)) {
error() << "ClangIndexer error";
return 3;
}
if (daemon) {
if (ClangIndexer::state() == ClangIndexer::Running) {
printf("@FINISHED@");
fflush(stdout);
}
ClangIndexer::transition(ClangIndexer::NotStarted);
} else {
break;
}
}
return 0;
}
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