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| author | H. Peter Anvin <hpa@zytor.com> | 2010-02-03 16:06:41 -0800 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2010-02-03 16:06:41 -0800 |
| commit | addaeaeb3949d576c4e0eb5cfc133b7c3bcfa8fa (patch) | |
| tree | 2ffea726dc494e87ecc9f506bc6a2bc9242730e3 /gpxe/src/core/process.c | |
| parent | 5c0f48e49f8d7d084810ecf0b98a76aaebb44835 (diff) | |
| parent | e7a5f95432132c8fc8f8ede39fda1d368002ddd8 (diff) | |
| download | syslinux.git-addaeaeb3949d576c4e0eb5cfc133b7c3bcfa8fa.tar.gz syslinux.git-addaeaeb3949d576c4e0eb5cfc133b7c3bcfa8fa.tar.xz syslinux.git-addaeaeb3949d576c4e0eb5cfc133b7c3bcfa8fa.zip | |
Merge branch 'master' into i915res
Diffstat (limited to 'gpxe/src/core/process.c')
| -rw-r--r-- | gpxe/src/core/process.c | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/gpxe/src/core/process.c b/gpxe/src/core/process.c index 6a687140..9c13e020 100644 --- a/gpxe/src/core/process.c +++ b/gpxe/src/core/process.c @@ -16,6 +16,8 @@ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ +FILE_LICENCE ( GPL2_OR_LATER ); + #include <gpxe/list.h> #include <gpxe/init.h> #include <gpxe/process.h> @@ -31,21 +33,22 @@ /** Process run queue */ static LIST_HEAD ( run_queue ); -/** Registered permanent processes */ -static struct process processes[0] - __table_start ( struct process, processes ); -static struct process processes_end[0] - __table_end ( struct process, processes ); - /** * Add process to process list * * @v process Process + * + * It is safe to call process_add() multiple times; further calls will + * have no effect. */ void process_add ( struct process *process ) { - DBGC ( process, "PROCESS %p starting\n", process ); - ref_get ( process->refcnt ); - list_add_tail ( &process->list, &run_queue ); + if ( list_empty ( &process->list ) ) { + DBGC ( process, "PROCESS %p starting\n", process ); + ref_get ( process->refcnt ); + list_add_tail ( &process->list, &run_queue ); + } else { + DBGC ( process, "PROCESS %p already started\n", process ); + } } /** @@ -93,9 +96,8 @@ void step ( void ) { static void init_processes ( void ) { struct process *process; - for ( process = processes ; process < processes_end ; process++ ) { + for_each_table_entry ( process, PERMANENT_PROCESSES ) process_add ( process ); - } } /** Process initialiser */ |