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A pattern that is becoming common across the project is to poll for events until a certain condition is true, optionally passing a timeout. To address this scenario, the event_poll_until macro was created and the job/channel/input modules were refactored to use it on their blocking functions.
35 lines
1.7 KiB
C
35 lines
1.7 KiB
C
#ifndef NVIM_OS_EVENT_H
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#define NVIM_OS_EVENT_H
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#include <stdint.h>
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#include <stdbool.h>
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#include "nvim/os/event_defs.h"
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#include "nvim/os/job_defs.h"
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#include "nvim/os/time.h"
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// Poll for events until a condition is true or a timeout has passed
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#define event_poll_until(timeout, condition) \
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do { \
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int remaining = timeout; \
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uint64_t before = (remaining > 0) ? os_hrtime() : 0; \
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while (!(condition)) { \
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event_poll(remaining); \
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if (remaining == 0) { \
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break; \
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} else if (remaining > 0) { \
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uint64_t now = os_hrtime(); \
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remaining -= (int) ((now - before) / 1000000); \
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before = now; \
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if (remaining <= 0) { \
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break; \
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} \
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} \
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} \
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} while (0)
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#ifdef INCLUDE_GENERATED_DECLARATIONS
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# include "os/event.h.generated.h"
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#endif
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#endif // NVIM_OS_EVENT_H
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