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zos: fix uv_get_free_memory()

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The previous implementation of `uv_get_free_memory()` on z/OS return
incorrect values. This is because the rceafc field being dereferenced
for the memory values needs to be treated as unsigned int.

Co-authored-by: Igor Todorovski <itodorov@ca.ibm.com>
Co-authored-by: Alex Yung <alex.yung@ibm.com>
Co-authored-by: CW Cheung <ccw.280231@ca.ibm.com>
PR-URL: https://github.com/libuv/libuv/pull/3141
Reviewed-By: Richard Lau <rlau@redhat.com>
This commit is contained in:
Shuowang (Wayne) Zhang 2020-12-10 12:27:24 -05:00 committed by Santiago Gimeno
parent bd4a357b3d
commit f15216e9dd
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GPG Key ID: F28C3C8DA33C03BE
1 changed files with 1 additions and 1 deletions
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src/unix/os390.c
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@ -182,7 +182,7 @@ uint64_t uv_get_free_memory(void) {
data_area_ptr rcep = {0};
cvt.assign = *(data_area_ptr_assign_type*)(CVT_PTR);
rcep.assign = *(data_area_ptr_assign_type*)(cvt.deref + CVTRCEP_OFFSET);
freeram = *((uint64_t*)(rcep.deref + RCEAFC_OFFSET)) * 4;
freeram = (uint64_t)*((uint32_t*)(rcep.deref + RCEAFC_OFFSET)) * 4096;
return freeram;
}