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Diffstat (limited to 'src/osd/osdmini/miniwork.c')
-rw-r--r-- | src/osd/osdmini/miniwork.c | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/src/osd/osdmini/miniwork.c b/src/osd/osdmini/miniwork.c new file mode 100644 index 00000000000..3d439e8307d --- /dev/null +++ b/src/osd/osdmini/miniwork.c @@ -0,0 +1,115 @@ +//============================================================ +// +// miniwork.c - Minimal core work item functions +// +// Copyright (c) 1996-2007, Nicola Salmoria and the MAME Team. +// Visit http://mamedev.org for licensing and usage restrictions. +// +//============================================================ + +#include "osdcore.h" + + +//============================================================ +// TYPE DEFINITIONS +//============================================================ + +struct _osd_work_item +{ + void *result; +}; + + + +//============================================================ +// osd_work_queue_alloc +//============================================================ + +osd_work_queue *osd_work_queue_alloc(int flags) +{ + // this minimal implementation doesn't need to keep any state + // so we just return a non-NULL pointer + return (osd_work_queue *)1; +} + + +//============================================================ +// osd_work_queue_items +//============================================================ + +int osd_work_queue_items(osd_work_queue *queue) +{ + // we never have pending items + return 0; +} + + +//============================================================ +// osd_work_queue_wait +//============================================================ + +int osd_work_queue_wait(osd_work_queue *queue, osd_ticks_t timeout) +{ + // never anything to wait for, so do nothing + return TRUE; +} + + +//============================================================ +// osd_work_queue_free +//============================================================ + +void osd_work_queue_free(osd_work_queue *queue) +{ + // never allocated anything, so nothing to do +} + + +//============================================================ +// osd_work_item_queue +//============================================================ + +osd_work_item *osd_work_item_queue(osd_work_queue *queue, osd_work_callback callback, void *param, UINT32 flags) +{ + osd_work_item *item; + + // allocate memory to hold the result + item = malloc(sizeof(*item)); + if (item == NULL) + return NULL; + + // execute the call directly + item->result = (*callback)(param, 0); + return item; +} + + +//============================================================ +// osd_work_item_wait +//============================================================ + +int osd_work_item_wait(osd_work_item *item, osd_ticks_t timeout) +{ + // never anything to wait for, so do nothing + return TRUE; +} + + +//============================================================ +// osd_work_item_result +//============================================================ + +void *osd_work_item_result(osd_work_item *item) +{ + return item->result; +} + + +//============================================================ +// osd_work_item_release +//============================================================ + +void osd_work_item_release(osd_work_item *item) +{ + free(item); +} |