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Merge "Enable connection to QEMUD via pipe."

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Vladimir Chtchetkine 2011-08-08 12:59:17 -07:00 committed by Android Code Review
commit 079ff13b07
2 changed files with 30 additions and 23 deletions
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2
include/hardware/qemu_pipe.h
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@ -20,8 +20,6 @@
#include <unistd.h>
#include <fcntl.h>
#include <sys/mman.h>
#include <hardware/qemud.h>
#include <hardware/qemu_pipe.h>
#include <pthread.h> /* for pthread_once() */
#include <stdlib.h>
#include <stdio.h>

51
include/hardware/qemud.h
View file

@ -18,10 +18,12 @@
#define ANDROID_INCLUDE_HARDWARE_QEMUD_H
#include <cutils/sockets.h>
#include "qemu_pipe.h"
/* the following is helper code that is used by the QEMU-specific
* hardware HAL modules to communicate with the emulator program
* through the 'qemud' multiplexing daemon.
* through the 'qemud' multiplexing daemon, or through the qemud
* pipe.
*
* see the documentation comments for details in
* development/emulator/qemud/qemud.c
@ -64,30 +66,37 @@ qemud_channel_open(const char* name)
int fd;
int namelen = strlen(name);
char answer[2];
char pipe_name[256];
/* connect to qemud control socket */
fd = socket_local_client( "qemud",
ANDROID_SOCKET_NAMESPACE_RESERVED,
SOCK_STREAM );
/* First, try to connect to the pipe. */
snprintf(pipe_name, sizeof(pipe_name), "qemud:%s", name);
fd = qemu_pipe_open(pipe_name);
if (fd < 0) {
D("no qemud control socket: %s", strerror(errno));
return -1;
}
D("QEMUD pipe is not available for %s: %s", name, strerror(errno));
/* If pipe is not available, connect to qemud control socket */
fd = socket_local_client( "qemud",
ANDROID_SOCKET_NAMESPACE_RESERVED,
SOCK_STREAM );
if (fd < 0) {
D("no qemud control socket: %s", strerror(errno));
return -1;
}
/* send service name to connect */
if (qemud_fd_write(fd, name, namelen) != namelen) {
D("can't send service name to qemud: %s",
strerror(errno));
close(fd);
return -1;
}
/* send service name to connect */
if (qemud_fd_write(fd, name, namelen) != namelen) {
D("can't send service name to qemud: %s",
strerror(errno));
close(fd);
return -1;
}
/* read answer from daemon */
if (qemud_fd_read(fd, answer, 2) != 2 ||
answer[0] != 'O' || answer[1] != 'K') {
D("cant' connect to %s service through qemud", name);
close(fd);
return -1;
/* read answer from daemon */
if (qemud_fd_read(fd, answer, 2) != 2 ||
answer[0] != 'O' || answer[1] != 'K') {
D("cant' connect to %s service through qemud", name);
close(fd);
return -1;
}
}
return fd;
}