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Variable stack Coroutines WIP
jonroach 23 Dec 2025 15:46
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8 months ago
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 #include <stdio.h>
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 #include <stddef.h>
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 #include "coroutine.h"
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 #include "generator.h"
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 #include "asleep.h"
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 #include "task.h"
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 #include <dirent.h>
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 #include <string.h>
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 #include <stdlib.h>
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 #include <time.h>
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 #define DEMO_STACK_SIZE (8192*sizeof(void *))
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 void *chaindeeper(void *param){
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 // enough headroom for printf on an Intel Mac - your system may be different
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 if (Coroutine_GetStackHeadroom() < 2000){
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 void *result;
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 bool fail = Coroutine_Chain(DEMO_STACK_SIZE, chaindeeper, param, &result);
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 return fail ? NULL : result;
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 }
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 printf("%ld %ld\n", (long)param, Coroutine_GetStackHeadroom());
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 long depth = (long)param;
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 if (depth > 10000){
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 return NULL;
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 }
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 return chaindeeper((void *)(depth + 1));
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 }
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 void *chaintest(
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 void *param
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 ){
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 (void)param;
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 chaindeeper((void *)0);
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 return param;
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 }
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 int main(int argc, char *argv[]) {
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 (void)argc;
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 (void)argv;
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 Coroutine_StartSystem();
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 Coroutine_Run(DEMO_STACK_SIZE, chaintest, NULL, NULL);
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 Coroutine_Report report = Coroutine_StopSystem();
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 printf("%d routines using a pool of %d, min headroom %zu\n", report.coroutines_created, report.coroutines_pool_size, report.lowest_headroom);
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 }
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