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server: Increase size of PID table and do not reuse recently freed ptids. 

Signed-off-by: Sebastian Lackner <sebastian@fds-team.de>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Sebastian Lackner 2016-04-21 12:34:00 +02:00 committed by Alexandre Julliard
parent e4d94e4813
commit 1025ed38c0
1 changed files with 5 additions and 3 deletions
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8
server/process.c
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@ -338,6 +338,7 @@ static unsigned int used_ptid_entries; /* number of entries in use */
static unsigned int alloc_ptid_entries; /* number of allocated entries */
static unsigned int next_free_ptid; /* next free entry */
static unsigned int last_free_ptid; /* last free entry */
static unsigned int num_free_ptids; /* number of free ptids */
static void kill_all_processes(void);
@ -354,16 +355,17 @@ unsigned int alloc_ptid( void *ptr )
id = used_ptid_entries + PTID_OFFSET;
entry = &ptid_entries[used_ptid_entries++];
}
else if (next_free_ptid)
else if (next_free_ptid && num_free_ptids >= 256)
{
id = next_free_ptid;
entry = &ptid_entries[id - PTID_OFFSET];
if (!(next_free_ptid = entry->next)) last_free_ptid = 0;
num_free_ptids--;
}
else /* need to grow the array */
{
unsigned int count = alloc_ptid_entries + (alloc_ptid_entries / 2);
if (!count) count = 64;
if (!count) count = 512;
if (!(entry = realloc( ptid_entries, count * sizeof(*entry) )))
{
set_error( STATUS_NO_MEMORY );
@ -390,8 +392,8 @@ void free_ptid( unsigned int id )
/* append to end of free list so that we don't reuse it too early */
if (last_free_ptid) ptid_entries[last_free_ptid - PTID_OFFSET].next = id;
else next_free_ptid = id;
last_free_ptid = id;
num_free_ptids++;
}
/* retrieve the pointer corresponding to a process or thread id */