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authorCorinna Vinschen <corinna@vinschen.de>2005-11-10 18:04:06 +0300
committerCorinna Vinschen <corinna@vinschen.de>2005-11-10 18:04:06 +0300
commit2d015bd67c8ab20d1b0f9bd1d84a1dc8fd42310f (patch)
treeed140634c5d17c42b35cd1931f300925aa97e0b8 /winsup/cygserver/process.h
parent8032f81502f37d0fc6a0a2f7902411d80b189331 (diff)
* bsd_helper.cc (securityinit): New function. Move initialization
of security related variables from ipcinit here. * bsd_helper.h (securityinit): Add prototype. * cygserver.cc (main): Call securityinit right after wincap.init. * process.cc (process_cache::process): Fix maximum process condition. * README: Add description for new -p/--process-cache option. * bsd_helper.cc (default_tun_check): Add kern.srv.process_cache_size entry to tunable_params. Set max value of kern.srv.request_threads to 310. * cygserver.cc (SERVER_VERSION): Set to 1.20. (print_usage): Print usage of new parameter -p. (main): Add process cache parameter handling. Accomodate new max value of request threads. * cygserver.conf: Add kern.srv.process_cache_size tunable parameter. Accomodate new max value of kern.srv.request_threads. * process.cc: Fix a comment. (process_cache::process_cache): Add max process cache size parameter. Change _cache_add_trigger to manual reset event. (struct pcache_wait_t): New struct used as parameter to pcache_wait_thread. (pcache_wait_thread): New thread function used for threaded process cache. (process_cache::wait_for_processes): Use threaded waiting if number of processes to wait for is bigger than 62. Always check all processes to avoid race under heavy load. (process_cache::sync_wait_array): Remove useless assert. Reset _cache_add_trigger right at the start since it's manual reset now. Accomodate threaded waiting. * process.h (process_cache::process_cache): Add max_procs parameter. (process_cache::_max_process_count): New member. (process_cache::_wait_array: Raise to allow up to 5 wait threads. (process_cache::_process_array): Ditto.
Diffstat (limited to 'winsup/cygserver/process.h')
-rw-r--r--winsup/cygserver/process.h9
1 files changed, 5 insertions, 4 deletions
diff --git a/winsup/cygserver/process.h b/winsup/cygserver/process.h
index 16a5205e9..4702d2818 100644
--- a/winsup/cygserver/process.h
+++ b/winsup/cygserver/process.h
@@ -1,6 +1,6 @@
/* process.h
- Copyright 2001, 2002, 2003, 2004 Red Hat Inc.
+ Copyright 2001, 2002, 2003, 2004, 2005 Red Hat Inc.
Written by Robert Collins <rbtcollins@hotmail.com>
@@ -141,7 +141,7 @@ class process_cache
friend class submission_loop;
public:
- process_cache (unsigned int initial_workers);
+ process_cache (const size_t max_procs, const unsigned int initial_workers);
~process_cache ();
class process *process (pid_t cygpid, DWORD winpid,
@@ -157,13 +157,14 @@ private:
submission_loop _submitter;
size_t _processes_count;
+ size_t _max_process_count;
class process *_processes_head; // A list sorted by winpid.
// Access to the _wait_array and related fields is not thread-safe,
// since they are used solely by wait_for_processes () and its callees.
- HANDLE _wait_array[MAXIMUM_WAIT_OBJECTS];
- class process *_process_array[MAXIMUM_WAIT_OBJECTS];
+ HANDLE _wait_array[5 * MAXIMUM_WAIT_OBJECTS];
+ class process *_process_array[5 * MAXIMUM_WAIT_OBJECTS];
HANDLE _cache_add_trigger; // Actually both add and remove.
CRITICAL_SECTION _cache_write_access; // Actually both read and write access.