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* fork.cc (fork_parent): Stop malloc activity while fork is in control of the

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heap.
* sigproc.cc (NZOMBIES): Rename from ZOMBIEMAX for clarity.
(zombies): Revert to original behavior.  Allocating zombie array resulted in
performance hit.
* winsup.h: Declare malloc lock routines.
This commit is contained in:
Christopher Faylor
2001-09-09 03:34:36 +00:00
parent c12a96d12f
commit e2ea684e4e
5 changed files with 25 additions and 22 deletions
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15
winsup/cygwin/sigproc.cc
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@@ -46,7 +46,7 @@ details. */
#define no_signals_available() (!hwait_sig || !sig_loop_wait)
#define ZOMBIEMAX 4096
#define NZOMBIES 4096
/*
* Global variables
@@ -99,12 +99,12 @@ Static HANDLE wait_sig_inited = NULL; // Control synchronization of
/* Used by WaitForMultipleObjects. These are handles to child processes.
*/
Static HANDLE events[PSIZE + 1] = {0}; // All my children's handles++
Static HANDLE events[PSIZE + 1] = {0}; // All my children's handles++
#define hchildren (events + 1) // Where the children handles begin
Static pinfo pchildren[PSIZE]; // All my children info
Static int nchildren = 0; // Number of active children
static pinfo *zombies; // All my deceased children info
static int nzombies; // Number of deceased children
Static pinfo zombies[NZOMBIES]; // All my deceased children info
Static int nzombies = 0; // Number of deceased children
Static waitq waitq_head = {0, 0, 0, 0, 0, 0, 0};// Start of queue for wait'ing threads
Static waitq waitq_main; // Storage for main thread
@@ -318,7 +318,7 @@ proc_subproc (DWORD what, DWORD val)
filled up our table or if we're ignoring SIGCHLD, then we immediately
remove the process and move on. Otherwise, this process becomes a zombie
which must be reaped by a wait() call. */
if (nzombies >= ZOMBIEMAX
if (nzombies >= NZOMBIES
|| myself->getsig (SIGCHLD).sa_handler == (void *) SIG_IGN)
{
sigproc_printf ("automatically removing zombie %d", thiszombie);
@@ -543,11 +543,6 @@ sig_dispatch_pending (int justwake)
void __stdcall
sigproc_init ()
{
if (!zombies)
zombies = (pinfo *) malloc (sizeof (pinfo) * ZOMBIEMAX);
else
nzombies = 0;
wait_sig_inited = CreateEvent (&sec_none_nih, TRUE, FALSE, NULL);
ProtectHandle (wait_sig_inited);