Revision a2aaa079 vl.c
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} |
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} |
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#ifndef CONFIG_IOTHREAD |
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static int64_t qemu_icount_delta(void) |
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{
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if (!use_icount) {
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return 5000 * (int64_t) 1000000; |
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} else if (use_icount == 1) {
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/* When not using an adaptive execution frequency |
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we tend to get badly out of sync with real time, |
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so just delay for a reasonable amount of time. */ |
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return 0; |
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} else {
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return cpu_get_icount() - cpu_get_clock(); |
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} |
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} |
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#endif |
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/* enable cpu_get_ticks() */ |
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void cpu_enable_ticks(void) |
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{
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timeout = 5000; |
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else if (tcg_has_work()) |
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timeout = 0; |
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else if (!use_icount) |
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timeout = 5000; |
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else {
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/* XXX: use timeout computed from timers */ |
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int64_t add; |
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int64_t delta; |
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/* Advance virtual time to the next event. */ |
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if (use_icount == 1) {
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/* When not using an adaptive execution frequency |
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we tend to get badly out of sync with real time, |
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so just delay for a reasonable amount of time. */ |
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delta = 0; |
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} else {
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delta = cpu_get_icount() - cpu_get_clock(); |
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} |
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delta = qemu_icount_delta(); |
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if (delta > 0) {
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/* If virtual time is ahead of real time then just |
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wait for IO. */ |
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timeout = (delta / 1000000) + 1;
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timeout = (delta + 999999) / 1000000;
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} else {
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/* Wait for either IO to occur or the next |
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timer event. */ |
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