int main(int argc, char *argv[])
{
errno = 0;
assert(argc == 2);
hook_init();
double num = strtod(argv[1], NULL);
fprintf(stderr,"%x\n", sqrt);
orig = (double (*)())hook_attach((uintptr_t)_sqrt, (hook_t)my_sqrt, 0);
printf("%p,errno=%i\n", orig, hook_error(NULL, 0));
perror("");
if (orig == NULL)
assert(orig != NULL);
printf("\n\n%f => %f\n", num, _sqrt(num));
printf("%d", hook_detach((uintptr_t)_sqrt, (hook_t)orig));
}
bool aio_listen_stream::open(const char* addr)
{
ACL_VSTREAM *sstream = acl_vstream_listen(addr, 128);
if (sstream == NULL)
return false;
snprintf(addr_, sizeof(addr_), "%s", ACL_VSTREAM_LOCAL(sstream));
stream_ = acl_aio_open(handle_->get_handle(), sstream);
// 调用基类的 hook_error 以向 handle 中增加异步流计数,
// 同时 hook 关闭及超时回调过程
hook_error();
// hook 监听的回调过程
hook_accept();
return true;
}
aio_fstream::aio_fstream(aio_handle* handle, ACL_FILE_HANDLE fd,
unsigned int oflags /* = 600 */)
: aio_stream(handle), aio_istream(handle), aio_ostream(handle)
{
acl_assert(handle);
acl_assert(fd != ACL_FILE_INVALID);
ACL_VSTREAM* vstream = acl_vstream_fhopen(fd, oflags);
stream_ = acl_aio_open(handle->get_handle(), vstream);
// 调用基类的 hook_error 以向 handle 中增加异步流计数,
// 同时 hook 关闭及超时回调过程
hook_error();
// 只有当流连接成功后才可 hook IO 读写状态
// hook 读回调过程
hook_read();
// hook 写回调过程
hook_write();
}
bool aio_fstream::open(const char* path, unsigned int oflags, unsigned int mode)
{
ACL_VSTREAM* fp = acl_vstream_fopen(path, oflags, mode, 8192);
if (fp == NULL)
return false;
stream_ = acl_aio_open(handle_->get_handle(), fp);
// 调用基类的 hook_error 以向 handle 中增加异步流计数,
// 同时 hook 关闭及超时回调过程
hook_error();
// 只有当流连接成功后才可 hook IO 读写状态
// hook 读回调过程
if ((oflags & (O_RDONLY | O_RDWR | O_APPEND | O_CREAT | O_TRUNC)))
hook_read();
// hook 写回调过程
if ((oflags & (O_WRONLY | O_RDWR | O_APPEND | O_CREAT | O_TRUNC)))
hook_write();
return true;
}
