From a6a7b67d720ce2a2f1a3e5d5a7eeac3f01cf16d8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nils=20O=2E=20Sel=C3=A5sdal?= <nos@utel.tech>
Date: Fri, 27 Jun 2025 23:29:09 +0200
Subject: [PATCH] build on osx

---
 src/iomux_epoll.c | 36 +++++++++++++++++++++++-------------
 1 file changed, 23 insertions(+), 13 deletions(-)

diff --git a/src/iomux_epoll.c b/src/iomux_epoll.c
index d18e227..d5ae10f 100644
--- a/src/iomux_epoll.c
+++ b/src/iomux_epoll.c
@@ -1,12 +1,13 @@
+#ifdef __linux__
 #include <sys/epoll.h>
 #include <unistd.h>
 #include <stdlib.h>
-#include <errno.h>
 #include <string.h>
 #include <assert.h>
+#include <errno.h>
 #include "iomux_impl.h"
 
-//epoll (linux specific) IO mux. 
+//epoll (linux specific) IO mux.
 //We stuff the struct IOMuxFD pointer in the event.data.ptr slot
 //for the kernel to keep track of, so we don't have to.
 ///we do not use edge triggered mode
@@ -29,10 +30,10 @@ static inline uint32_t mux_2_epoll_events(unsigned int events)
 {
     uint32_t epoll_events = 0;
 
-    if (events & MUX_EV_READ) 
+    if (events & MUX_EV_READ)
         epoll_events |= EPOLLIN;
 
-    if (events & MUX_EV_WRITE) 
+    if (events & MUX_EV_WRITE)
         epoll_events |= EPOLLOUT;
 
     return epoll_events;
@@ -47,7 +48,7 @@ static inline unsigned int epoll_2_mux_events(uint32_t events)
     if (events & (EPOLLIN | EPOLLHUP | EPOLLERR))
         mux_events |= MUX_EV_READ;
 
-    if (events & EPOLLOUT) 
+    if (events & EPOLLOUT)
         mux_events |= MUX_EV_WRITE;
 
     return mux_events;
@@ -58,10 +59,10 @@ static int iomux_epoll_update_events(struct IOMux *mux_, struct IOMuxFD *fd)
     struct IOMuxEpoll *mux = mux_->instance;
     struct epoll_event e_event = {0, {0}};
     int rc;
-   
+
     e_event.events = mux_2_epoll_events(fd->what);
     e_event.data.ptr = fd;
-    
+
     rc = epoll_ctl(mux->epoll_fd, EPOLL_CTL_MOD, fd->fd, &e_event);
     assert(rc == 0);
     if (rc != 0)
@@ -117,7 +118,7 @@ static int iomux_epoll_unregister_fd(struct IOMux *mux_, struct IOMuxFD *fd)
             break;
         }
     }
- 
+
     mux->num_descriptors--;
 
     return rc;
@@ -145,10 +146,10 @@ static int iomux_epoll_run(struct IOMux *mux_, struct timeval *timeout)
     //epoll takes the timeout in miliseconds
     if (timeout)
         timeout_ms = timeval_to_ms(timeout);
-    else 
+    else
         timeout_ms = -1;
 
-    do {    
+    do {
 
         rc = epoll_wait(mux->epoll_fd, mux->pending_events, EPOLL_WAIT_EVENTS, timeout_ms);
 
@@ -173,14 +174,14 @@ static int iomux_epoll_run(struct IOMux *mux_, struct timeval *timeout)
 
         //we want to deliver only one event at a time to simplify
         //application programming.
-        if (events & MUX_EV_READ && fd != NULL) { 
+        if (events & MUX_EV_READ && fd != NULL) {
             assert(fd->callback != NULL);
             fd->callback(mux_, fd, MUX_EV_READ);
         }
 
         //now re-check, in case the IOMuxFD was removed
         fd = mux->pending_events[i].data.ptr;
-        if (events & MUX_EV_WRITE && fd != NULL) { 
+        if (events & MUX_EV_WRITE && fd != NULL) {
             assert(fd->callback != NULL);
             fd->callback(mux_, fd, MUX_EV_WRITE);
         }
@@ -211,7 +212,7 @@ static const struct IOMuxOps epoll_ops = {
     .unregister_fd_impl = iomux_epoll_unregister_fd,
     .update_events_impl = iomux_epoll_update_events,
 };
-    
+
 int iomux_epoll_init(struct IOMux *mux)
 {
     struct IOMuxEpoll *mux_epoll = calloc(1, sizeof *mux_epoll);
@@ -230,3 +231,12 @@ int iomux_epoll_init(struct IOMux *mux)
     return 0;
 }
 
+#else
+#include <errno.h>
+#include "iomux_impl.h"
+
+int iomux_epoll_init(struct IOMux *mux)
+{
+    return ENOSYS;
+}
+#endif