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[process] Add process_running() 

Signed-off-by: Michael Brown <mcb30@ipxe.org>
pull/1/head
Michael Brown 2010-08-25 11:17:13 +01:00
parent da123eada4
commit 25447294d5
2 changed files with 13 additions and 2 deletions
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4
src/core/process.c
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@ -42,7 +42,7 @@ static LIST_HEAD ( run_queue );
* have no effect. * have no effect.
*/ */
void process_add ( struct process *process ) { void process_add ( struct process *process ) {
if ( list_empty ( &process->list ) ) { if ( ! process_running ( process ) ) {
DBGC ( process, "PROCESS %p starting\n", process ); DBGC ( process, "PROCESS %p starting\n", process );
ref_get ( process->refcnt ); ref_get ( process->refcnt );
list_add_tail ( &process->list, &run_queue ); list_add_tail ( &process->list, &run_queue );
@ -60,7 +60,7 @@ void process_add ( struct process *process ) {
* have no effect. * have no effect.
*/ */
void process_del ( struct process *process ) { void process_del ( struct process *process ) {
if ( ! list_empty ( &process->list ) ) { if ( process_running ( process ) ) {
DBGC ( process, "PROCESS %p stopping\n", process ); DBGC ( process, "PROCESS %p stopping\n", process );
list_del ( &process->list ); list_del ( &process->list );
INIT_LIST_HEAD ( &process->list ); INIT_LIST_HEAD ( &process->list );

11
src/include/ipxe/process.h
View File

@ -66,6 +66,17 @@ process_init ( struct process *process,
process_add ( process ); process_add ( process );
} }
/**
* Check if process is running
*
* @v process Process
* @ret running Process is running
*/
static inline __attribute__ (( always_inline )) int
process_running ( struct process *process ) {
return ( ! list_empty ( &process->list ) );
}
/** Permanent process table */ /** Permanent process table */
#define PERMANENT_PROCESSES __table ( struct process, "processes" ) #define PERMANENT_PROCESSES __table ( struct process, "processes" )