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cc96e2c86c
- Test0 has a full ipc mr read/write test. - A full ipc occurs for definite only if both parties use the FULL IPC flag. Otherwise the thread that makes the ipc copy rules on whether it was a short or a full copy.
37 lines
841 B
C
37 lines
841 B
C
#include <l4lib/arch/syslib.h>
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#include <l4lib/ipcdefs.h>
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/*
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* Full ipc test. Sends/receives full utcb, done with the pager.
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*/
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void ipc_full_test(void)
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{
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int ret = 0;
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/* Fill in all of the utcb locations */
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for (int i = MR_UNUSED_START; i < MR_TOTAL + MR_REST; i++) {
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//printf("Writing: MR%d: %d\n", i, i);
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write_mr(i, i);
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}
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/* Call the pager */
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if ((ret = l4_sendrecv_full(PAGER_TID, PAGER_TID, L4_IPC_TAG_SYNC_FULL)) < 0) {
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printf("%s: Failed with %d\n", __FUNCTION__, ret);
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BUG();
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}
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/* Read back updated utcb */
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for (int i = MR_UNUSED_START; i < MR_TOTAL + MR_REST; i++) {
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//printf("Read MR%d: %d\n", i, read_mr(i));
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if (read_mr(i) != 0) {
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printf("Expected 0 on all mrs. Failed.\n");
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BUG();
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}
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}
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if (!ret)
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printf("FULL IPC TEST: -- PASSED --\n");
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else
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printf("FULL IPC TEST: -- FAILED --\n");
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}
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