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Merge pull request #1545 from rbehrends/setjmp-perf

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Improve setjmp()/longjmp() performance.
This commit is contained in:
Andreas Rumpf
2014-10-02 01:35:59 +02:00
parent 2154906fc9 cb6441e73d
commit c17c8e9afa
4 changed files with 30 additions and 6 deletions
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21
lib/system/ansi_c.nim
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@@ -78,10 +78,23 @@ when defined(macosx):
else:
template SIGBUS: expr = SIGSEGV
proc c_longjmp(jmpb: C_JmpBuf, retval: cint) {.
header: "<setjmp.h>", importc: "longjmp".}
proc c_setjmp(jmpb: C_JmpBuf): cint {.
header: "<setjmp.h>", importc: "setjmp".}
when defined(nimSigSetjmp) and not defined(nimStdSetjmp):
proc c_longjmp(jmpb: C_JmpBuf, retval: cint) {.
header: "<setjmp.h>", importc: "siglongjmp".}
template c_setjmp(jmpb: C_JmpBuf): cint =
proc c_sigsetjmp(jmpb: C_JmpBuf, savemask: cint): cint {.
header: "<setjmp.h>", importc: "sigsetjmp".}
c_sigsetjmp(jmpb, 0)
elif defined(nimRawSetjmp) and not defined(nimStdSetjmp):
proc c_longjmp(jmpb: C_JmpBuf, retval: cint) {.
header: "<setjmp.h>", importc: "_longjmp".}
proc c_setjmp(jmpb: C_JmpBuf): cint {.
header: "<setjmp.h>", importc: "_setjmp".}
else:
proc c_longjmp(jmpb: C_JmpBuf, retval: cint) {.
header: "<setjmp.h>", importc: "longjmp".}
proc c_setjmp(jmpb: C_JmpBuf): cint {.
header: "<setjmp.h>", importc: "setjmp".}
proc c_signal(sig: cint, handler: proc (a: cint) {.noconv.}) {.
importc: "signal", header: "<signal.h>".}