dmessage_t* dmessage_alloc(size_t n)
{
size_t sz = sizeof(dmessage_t) + n;
dmessage_t* mp = DZALLOC(sz);
if (mp) {
mp->buffer = mp->data;
mp->used = 0;
mp->size = n;
}
return mp;
}
static ErlDrvData uart_drv_start(ErlDrvPort port, char* command)
{
(void) command;
drv_ctx_t* ctx = NULL;
INFOF("memory allocated: %ld", dlib_allocated());
INFOF("total memory allocated: %ld", dlib_total_allocated());
ctx = DZALLOC(sizeof(drv_ctx_t));
dthread_init(&ctx->self, port);
if (strncmp(command, "uart_drv", 8) == 0)
command += 8;
if (*command == ' ')
command++;
DEBUGF("uart_drv: start (%s)", command);
if (strcmp(command, "ftdi") == 0) {
#ifdef HAVE_FTDI
ctx->other = dthread_start(port, uart_ftdi_main, &ctx->self, 4096);
DEBUGF("uart_drv: ftdi thread = %p", ctx->other);
#endif
}
else {
#ifdef __WIN32__
if ((*command == '\0') || (strcmp(command, "win32") == 0)) {
ctx->other = dthread_start(port, uart_win32_main, &ctx->self, 4096);
DEBUGF("uart_drv: win32 thread = %p", ctx->other);
}
#else
if ((*command == '\0') || (strcmp(command, "unix") == 0)) {
ctx->other = dthread_start(port, uart_unix_main, &ctx->self, 4096);
DEBUGF("uart_drv: unix thread = %p", ctx->other);
}
#endif
}
if (ctx->other == NULL) {
dthread_finish(&ctx->self);
DFREE(ctx);
return ERL_DRV_ERROR_BADARG;
}
dthread_signal_use(&ctx->self, 1);
dthread_signal_select(&ctx->self, 1);
set_port_control_flags(port, PORT_CONTROL_FLAG_BINARY);
return (ErlDrvData) ctx;
}
