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py/mperrno: Define MP_EWOULDBLOCK as EWOULDBLOCK, not EAGAIN. 

Most modern systems have EWOULDBLOCK aliased to EAGAIN, ie they have the
same value.  But some systems use different values for these errnos and if
a uPy port is using the system errno values (ie not the internal uPy
values) then it's important to be able to distinguish EWOULDBLOCK from
EAGAIN.  Eg if a system call returned EWOULDBLOCK it must be possible to
check for this return value, and this patch makes this now possible.
This commit is contained in:
Damien George 2018-04-26 15:02:59 +10:00
parent 9f1eafc380
commit 96740be357
1 changed files with 1 additions and 1 deletions
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py/mperrno.h
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@ -122,7 +122,7 @@
#define MP_EPIPE EPIPE #define MP_EPIPE EPIPE
#define MP_EDOM EDOM #define MP_EDOM EDOM
#define MP_ERANGE ERANGE #define MP_ERANGE ERANGE
#define MP_EWOULDBLOCK EAGAIN #define MP_EWOULDBLOCK EWOULDBLOCK
#define MP_EOPNOTSUPP EOPNOTSUPP #define MP_EOPNOTSUPP EOPNOTSUPP
#define MP_EAFNOSUPPORT EAFNOSUPPORT #define MP_EAFNOSUPPORT EAFNOSUPPORT
#define MP_EADDRINUSE EADDRINUSE #define MP_EADDRINUSE EADDRINUSE