Add missing constants for poll() flags

src/unix/bsd/apple/mod.rs

@@ -1285,6 +1285,11 @@ pub const CTL_DEBUG_NAME: ::c_int = 0;
 pub const CTL_DEBUG_VALUE: ::c_int = 1;
 pub const CTL_DEBUG_MAXID: ::c_int = 20;
 
+pub const POLLRDNORM: ::c_short = 0x040;
+pub const POLLWRNORM: ::c_short = 0x004;
+pub const POLLRDBAND: ::c_short = 0x080;
+pub const POLLWRBAND: ::c_short = 0x100;
+
 pub const PRIO_DARWIN_THREAD: ::c_int = 3;
 pub const PRIO_DARWIN_PROCESS: ::c_int = 4;
 pub const PRIO_DARWIN_BG: ::c_int = 0x1000;

src/unix/notbsd/linux/mips.rs

@@ -413,6 +413,11 @@ pub const SIG_SETMASK: ::c_int = 3;
 pub const SIG_BLOCK: ::c_int = 0x1;
 pub const SIG_UNBLOCK: ::c_int = 0x2;
 
+pub const POLLRDNORM: ::c_short = 0x040;
+pub const POLLWRNORM: ::c_short = 0x004;
+pub const POLLRDBAND: ::c_short = 0x080;
+pub const POLLWRBAND: ::c_short = 0x100;
+
 pub const PTHREAD_STACK_MIN: ::size_t = 131072;
 
 pub const ADFS_SUPER_MAGIC: ::c_long = 0x0000adf5;

src/unix/notbsd/linux/musl/mod.rs

@@ -153,6 +153,11 @@ pub const MADV_DONTDUMP: ::c_int = 16;
 
 pub const EPOLLWAKEUP: ::c_int = 0x20000000;
 
+pub const POLLRDNORM: ::c_short = 0x040;
+pub const POLLWRNORM: ::c_short = 0x100;
+pub const POLLRDBAND: ::c_short = 0x080;
+pub const POLLWRBAND: ::c_short = 0x200;
+
 pub const MADV_HUGEPAGE: ::c_int = 14;
 pub const MADV_NOHUGEPAGE: ::c_int = 15;
 

src/unix/notbsd/linux/other/mod.rs

@@ -378,6 +378,11 @@ pub const SIG_SETMASK: ::c_int = 2;
 pub const SIG_BLOCK: ::c_int = 0x000000;
 pub const SIG_UNBLOCK: ::c_int = 0x01;
 
+pub const POLLRDNORM: ::c_short = 0x040;
+pub const POLLWRNORM: ::c_short = 0x100;
+pub const POLLRDBAND: ::c_short = 0x080;
+pub const POLLWRBAND: ::c_short = 0x200;
+
 pub const FALLOC_FL_KEEP_SIZE: ::c_int = 0x01;
 pub const FALLOC_FL_PUNCH_HOLE: ::c_int = 0x02;