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hooks for multithreading. Disable nagle

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git-svn-id: svn://svn.berlios.de/openocd/trunk@524 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
oharboe 2008-03-26 13:18:23 +00:00
parent d47e1b8f36
commit 2df3ca97a7
2 changed files with 64 additions and 1 deletions
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11
src/openocd.c
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@ -64,6 +64,17 @@ void exit_handler(void)
jtag->quit();
}
/* implementations of OpenOCD that uses multithreading needs to lock OpenOCD while calling
* OpenOCD fn's. No-op in vanilla OpenOCD
*/
void lockBigLock()
{
}
void unlockBigLock()
{
}
int main(int argc, char *argv[])
{
/* initialize commandline interface */

54
src/server/server.c
View File

@ -37,6 +37,9 @@
#include <sys/types.h>
#include <fcntl.h>
#include <signal.h>
#ifndef _WIN32
#include <netinet/tcp.h>
#endif
service_t *services = NULL;
@ -49,6 +52,9 @@ int add_connection(service_t *service, command_context_t *cmd_ctx)
unsigned int address_size;
connection_t *c, **p;
int retval;
#ifndef _WIN32
int flag=1;
#endif
c = malloc(sizeof(connection_t));
c->fd = -1;
@ -60,7 +66,32 @@ int add_connection(service_t *service, command_context_t *cmd_ctx)
c->next = NULL;
address_size = sizeof(c->sin);
#ifndef _WIN32
int segsize=65536;
setsockopt(service->fd, IPPROTO_TCP, TCP_MAXSEG, &segsize, sizeof(int));
int window_size = 128 * 1024;
/* These setsockopt()s must happen before the accept() */
setsockopt(service->fd, SOL_SOCKET, SO_SNDBUF,
(char *) &window_size, sizeof(window_size));
setsockopt(service->fd, SOL_SOCKET, SO_RCVBUF,
(char *) &window_size, sizeof(window_size));
#endif
c->fd = accept(service->fd, (struct sockaddr *)&service->sin, &address_size);
#ifndef _WIN32
// This increases performance dramatically for e.g. GDB load which
// does not have a sliding window protocol.
retval=setsockopt(c->fd, /* socket affected */
IPPROTO_TCP, /* set option at TCP level */
TCP_NODELAY, /* name of option */
(char *) &flag, /* the cast is historical
cruft */
sizeof(int)); /* length of option value */
setsockopt(c->fd, IPPROTO_TCP, TCP_MAXSEG, &segsize, sizeof(int));
#endif
LOG_INFO("accepting '%s' connection from %i", service->name, c->sin.sin_port);
@ -221,6 +252,9 @@ int remove_services()
return ERROR_OK;
}
extern void lockBigLock();
extern void unlockBigLock();
int server_loop(command_context_t *command_context)
{
service_t *service;
@ -237,6 +271,13 @@ int server_loop(command_context_t *command_context)
if (signal(SIGPIPE, SIG_IGN) == SIG_ERR)
LOG_ERROR("couldn't set SIGPIPE to SIG_IGN");
#endif
// This function is reentrant(workaround for configuration problems)
static int lockCount=0;
if (lockCount++==0)
{
lockBigLock();
}
/* do regular tasks after at most 10ms */
tv.tv_sec = 0;
@ -275,12 +316,17 @@ int server_loop(command_context_t *command_context)
}
#ifndef _WIN32
#ifndef BUILD_ECOSBOARD
/* add STDIN to read_fds */
FD_SET(fileno(stdin), &read_fds);
#endif
#endif
// Only while we're sleeping we'll let others run
unlockBigLock();
retval = select(fd_max + 1, &read_fds, NULL, NULL, &tv);
lockBigLock();
if (retval == -1)
{
#ifdef _WIN32
@ -363,6 +409,7 @@ int server_loop(command_context_t *command_context)
}
#ifndef _WIN32
#ifndef BUILD_ECOSBOARD
if (FD_ISSET(fileno(stdin), &read_fds))
{
if (getc(stdin) == 'x')
@ -370,6 +417,7 @@ int server_loop(command_context_t *command_context)
shutdown_openocd = 1;
}
}
#endif
#else
MSG msg;
while (PeekMessage(&msg,NULL,0,0,PM_REMOVE))
@ -379,6 +427,10 @@ int server_loop(command_context_t *command_context)
}
#endif
}
if (--lockCount==0)
{
unlockBigLock();
}
return ERROR_OK;
}