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Added an environment variable to override the minimum stack size. Closes #637.

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This commit is contained in:
Eric Holk
2011-07-08 11:34:42 -07:00
parent 4c0a2ed378
commit d7db25e8f6
1 changed files with 10 additions and 1 deletions
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11
src/rt/rust_task.cpp
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@@ -15,13 +15,22 @@
// FIXME (issue #151): This should be 0x300; the change here is for // FIXME (issue #151): This should be 0x300; the change here is for
// practicality's sake until stack growth is working. // practicality's sake until stack growth is working.
static size_t const min_stk_bytes = 0x200000; static size_t get_min_stk_size() {
char *stack_size = getenv("RUST_MIN_STACK");
if(stack_size) {
return atoi(stack_size);
}
else {
return 0x200000;
}
}
// Task stack segments. Heap allocated and chained together. // Task stack segments. Heap allocated and chained together.
static stk_seg* static stk_seg*
new_stk(rust_task *task, size_t minsz) new_stk(rust_task *task, size_t minsz)
{ {
size_t min_stk_bytes = get_min_stk_size();
if (minsz < min_stk_bytes) if (minsz < min_stk_bytes)
minsz = min_stk_bytes; minsz = min_stk_bytes;
size_t sz = sizeof(stk_seg) + minsz; size_t sz = sizeof(stk_seg) + minsz;