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get_port_info() is not supposed to succeed on a closed port.

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Saved the port_entry.closed member and now set the capacity to 0, since
it is not used any longer (reduces the size of the port table).


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@6956 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
2004-03-12 05:28:50 +00:00
parent 85b89008bd
commit 28f42fcecc
1 changed files with 5 additions and 6 deletions
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src/kernel/core/port.c
+5 -6
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@@ -46,7 +46,6 @@ struct port_entry {
sem_id write_sem;
int32 total_count;
struct list msg_queue;
bool closed;
};
// internal API
@@ -476,7 +475,7 @@ close_port(port_id id)
}
// mark port to disable writing
sPorts[slot].closed = true;
sPorts[slot].capacity = 0;
RELEASE_PORT_LOCK(sPorts[slot]);
restore_interrupts(state);
@@ -611,10 +610,10 @@ _get_port_info(port_id id, port_info *info, size_t size)
state = disable_interrupts();
GRAB_PORT_LOCK(sPorts[slot]);
if (sPorts[slot].id != id) {
if (sPorts[slot].id != id || sPorts[slot].capacity == 0) {
RELEASE_PORT_LOCK(sPorts[slot]);
restore_interrupts(state);
dprintf("get_port_info: invalid port_id %ld\n", id);
TRACE(("get_port_info: invalid port_id %ld\n", id));
return B_BAD_PORT_ID;
}
@@ -654,7 +653,7 @@ _get_next_port_info(team_id team, int32 *_cookie, struct port_info *info, size_t
while (slot < gMaxPorts) {
GRAB_PORT_LOCK(sPorts[slot]);
if (sPorts[slot].id != -1 && sPorts[slot].owner == team) {
if (sPorts[slot].id != -1 && sPorts[slot].capacity != 0 && sPorts[slot].owner == team) {
// found one!
fill_port_info(&sPorts[slot], info, size);
@@ -938,7 +937,7 @@ write_port_etc(port_id id, int32 msgCode, const void *msgBuffer,
return B_BAD_PORT_ID;
}
if (sPorts[slot].closed) {
if (sPorts[slot].capacity == 0) {
RELEASE_PORT_LOCK(sPorts[slot]);
restore_interrupts(state);
TRACE(("write_port_etc: port %ld closed\n", id));