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-rw-r--r--erts/emulator/test/driver_SUITE_data/otp_9302_drv.c175
1 files changed, 135 insertions, 40 deletions
diff --git a/erts/emulator/test/driver_SUITE_data/otp_9302_drv.c b/erts/emulator/test/driver_SUITE_data/otp_9302_drv.c
index 1147549135..beee1b735f 100644
--- a/erts/emulator/test/driver_SUITE_data/otp_9302_drv.c
+++ b/erts/emulator/test/driver_SUITE_data/otp_9302_drv.c
@@ -19,8 +19,12 @@
#ifdef __WIN32__
#include <windows.h>
#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
#include "erl_driver.h"
+static void stop(ErlDrvData drv_data);
static ErlDrvData start(ErlDrvPort port,
char *command);
static void output(ErlDrvData drv_data,
@@ -31,7 +35,7 @@ static void ready_async(ErlDrvData drv_data,
static ErlDrvEntry otp_9302_drv_entry = {
NULL /* init */,
start,
- NULL /* stop */,
+ stop,
output,
NULL /* ready_input */,
NULL /* ready_output */,
@@ -53,42 +57,121 @@ static ErlDrvEntry otp_9302_drv_entry = {
NULL /* handle_monitor */
};
+typedef struct Otp9302AsyncData_ Otp9302AsyncData;
+
+typedef struct {
+ ErlDrvMutex *mtx;
+ Otp9302AsyncData *start;
+ Otp9302AsyncData *end;
+} Otp9302MsgQ;
+
+typedef struct {
+ ErlDrvPort port;
+ int smp;
+ Otp9302MsgQ msgq;
+} Otp9302Data;
+
+struct Otp9302AsyncData_ {
+ Otp9302AsyncData *next;
+ ErlDrvPort port;
+ int smp;
+ int refc;
+ int block;
+ struct {
+ ErlDrvTermData port;
+ ErlDrvTermData receiver;
+ ErlDrvTermData msg;
+ } term_data;
+ Otp9302MsgQ *msgq;
+};
+
+
DRIVER_INIT(otp_9302_drv)
{
return &otp_9302_drv_entry;
}
+static void stop(ErlDrvData drv_data)
+{
+ Otp9302Data *data = (Otp9302Data *) drv_data;
+ if (!data->smp)
+ erl_drv_mutex_destroy(data->msgq.mtx);
+ driver_free(data);
+}
+
static ErlDrvData start(ErlDrvPort port,
char *command)
{
- return (ErlDrvData) port;
-}
+ Otp9302Data *data;
+ ErlDrvSysInfo sys_info;
-typedef struct {
- ErlDrvPort port;
- ErlDrvTermData receiver;
- int block;
- int cancel;
- int eoj;
-} Otp9302AsyncData;
+ data = driver_alloc(sizeof(Otp9302Data));
+ if (!data)
+ return ERL_DRV_ERROR_GENERAL;
-static void async_invoke(void *data)
+ data->port = port;
+
+ driver_system_info(&sys_info, sizeof(ErlDrvSysInfo));
+ data->smp = sys_info.smp_support;
+
+ if (!data->smp) {
+ data->msgq.start = NULL;
+ data->msgq.end = NULL;
+ data->msgq.mtx = erl_drv_mutex_create("");
+ if (!data->msgq.mtx) {
+ driver_free(data);
+ return ERL_DRV_ERROR_GENERAL;
+ }
+ }
+
+ return (ErlDrvData) data;
+}
+
+static void send_reply(Otp9302AsyncData *adata)
{
- Otp9302AsyncData *adata = (Otp9302AsyncData *) data;
- char *what = (adata->block
- ? "block"
- : (adata->cancel
- ? "cancel"
- : (adata->eoj
- ? "end_of_jobs"
- : "job")));
ErlDrvTermData spec[] = {
- ERL_DRV_PORT, driver_mk_port(adata->port),
- ERL_DRV_ATOM, driver_mk_atom(what),
+ ERL_DRV_PORT, adata->term_data.port,
+ ERL_DRV_ATOM, adata->term_data.msg,
ERL_DRV_TUPLE, 2
};
- driver_send_term(adata->port, adata->receiver,
+ driver_send_term(adata->port, adata->term_data.receiver,
spec, sizeof(spec)/sizeof(spec[0]));
+}
+
+static void enqueue_reply(Otp9302AsyncData *adata)
+{
+ Otp9302MsgQ *msgq = adata->msgq;
+ adata->next = NULL;
+ adata->refc++;
+ erl_drv_mutex_lock(msgq->mtx);
+ if (msgq->end)
+ msgq->end->next = adata;
+ else
+ msgq->end = msgq->start = adata;
+ msgq->end = adata;
+ erl_drv_mutex_unlock(msgq->mtx);
+}
+
+static void dequeue_replies(Otp9302AsyncData *adata)
+{
+ Otp9302MsgQ *msgq = adata->msgq;
+ erl_drv_mutex_lock(msgq->mtx);
+ if (--adata->refc == 0)
+ driver_free(adata);
+ while (msgq->start) {
+ send_reply(msgq->start);
+ adata = msgq->start;
+ msgq->start = msgq->start->next;
+ if (--adata->refc == 0)
+ driver_free(adata);
+ }
+ msgq->start = msgq->end = NULL;
+ erl_drv_mutex_unlock(msgq->mtx);
+}
+
+static void async_invoke(void *data)
+{
+ Otp9302AsyncData *adata = (Otp9302AsyncData *) data;
if (adata->block) {
#ifdef __WIN32__
Sleep((DWORD) 2000);
@@ -96,14 +179,30 @@ static void async_invoke(void *data)
sleep(2);
#endif
}
+ if (adata->smp)
+ send_reply(adata);
+ else
+ enqueue_reply(adata);
+}
+
+static void ready_async(ErlDrvData drv_data,
+ ErlDrvThreadData thread_data)
+{
+ Otp9302AsyncData *adata = (Otp9302AsyncData *) thread_data;
+ if (adata->smp)
+ driver_free(adata);
+ else
+ dequeue_replies(adata);
}
static void output(ErlDrvData drv_data,
char *buf, int len)
{
- ErlDrvPort port = (ErlDrvPort) drv_data;
- ErlDrvTermData caller = driver_caller(port);
- unsigned int key = (unsigned int) port;
+ Otp9302Data *data = (Otp9302Data *) drv_data;
+ ErlDrvTermData td_port = driver_mk_port(data->port);
+ ErlDrvTermData td_receiver = driver_caller(data->port);
+ ErlDrvTermData td_job = driver_mk_atom("job");
+ unsigned int key = (unsigned int) data->port;
long id[5];
Otp9302AsyncData *ad[5];
int i;
@@ -113,25 +212,21 @@ static void output(ErlDrvData drv_data,
if (!ad[i])
abort();
- ad[i]->port = port;
- ad[i]->receiver = caller;
+ ad[i]->smp = data->smp;
+ ad[i]->port = data->port;
ad[i]->block = 0;
- ad[i]->eoj = 0;
- ad[i]->cancel = 0;
+ ad[i]->refc = 1;
+ ad[i]->term_data.port = td_port;
+ ad[i]->term_data.receiver = td_receiver;
+ ad[i]->term_data.msg = td_job;
+ ad[i]->msgq = &data->msgq;
}
ad[0]->block = 1;
- ad[2]->cancel = 1;
- ad[4]->eoj = 1;
+ ad[0]->term_data.msg = driver_mk_atom("block");
+ ad[2]->term_data.msg = driver_mk_atom("cancel");
+ ad[4]->term_data.msg = driver_mk_atom("end_of_jobs");
for (i = 0; i < sizeof(id)/sizeof(id[0]); i++)
- id[i] = driver_async(port, &key, async_invoke, ad[i], driver_free);
+ id[i] = driver_async(data->port, &key, async_invoke, ad[i], driver_free);
if (id[2] > 0)
driver_async_cancel(id[2]);
}
-
-static void ready_async(ErlDrvData drv_data,
- ErlDrvThreadData thread_data)
-{
- if ((void *) thread_data)
- driver_free((void *) thread_data);
-}
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-12 01:41:02 +0000