0.99.0

2 files changed, 170 insertions, 0 deletions

diff --git a/platform/linux.h b/platform/linux.h
new file mode 100644
index 0000000..09b972d
--- /dev/null
+++ b/platform/linux.h
@@ -0,0 +1,109 @@
+/*
+ * Copyright (c) 2026 Dylan Araps
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef DFM_PLATFORM_LINUX_H
+#define DFM_PLATFORM_LINUX_H
+
+#include <stdalign.h>
+#include <stddef.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <sys/inotify.h>
+
+#include "../lib/util.h"
+
+struct platform {
+  int inotify_wd;
+  int inotify_fd;
+  union {
+    align_max _a;
+    char b[4096];
+  } in;
+  ssize_t inl;
+  ssize_t ino;
+};
+
+static inline int
+fs_watch_init(struct platform *p)
+{
+  p->inotify_wd = -1;
+  p->inotify_fd = inotify_init1(IN_NONBLOCK | IN_CLOEXEC);
+  return p->inotify_fd;
+}
+
+static inline void
+fs_watch(struct platform *p, const char *s)
+{
+  if (p->inotify_wd != -1)
+    inotify_rm_watch(p->inotify_fd, p->inotify_wd);
+  p->inotify_wd = inotify_add_watch(p->inotify_fd, s,
+    IN_CREATE|IN_DELETE|IN_MOVED_FROM|IN_MOVED_TO|IN_ATTRIB);
+}
+
+static inline int
+fs_watch_pump(struct platform *p, const char **s, size_t *l)
+{
+  *s = NULL;
+  if (p->inotify_fd == -1)
+    return 0;
+  if (p->ino >= p->inl) {
+    p->inl = read(p->inotify_fd, p->in.b, sizeof(p->in.b));
+    if (p->inl <= 0)
+      return 0;
+    p->ino = 0;
+  }
+  if (p->inl - p->ino < (ssize_t)sizeof(struct inotify_event))
+    return 0;
+  struct inotify_event *ev =
+    (struct inotify_event *)(void *)(p->in.b + p->ino);
+  ssize_t size = sizeof(struct inotify_event) + ev->len;
+  if (p->inl - p->ino < size)
+    return 0;
+  p->ino += size;
+  if (ev->mask & IN_Q_OVERFLOW)
+    return '!';
+  if (!ev->len)
+    return 0;
+  *s = ev->name;
+  *l = strlen(ev->name);
+  if (ev->mask & (IN_CREATE | IN_MOVED_TO))
+    return '+';
+  if (ev->mask & (IN_DELETE | IN_MOVED_FROM))
+    return '-';
+  if (ev->mask & IN_ATTRIB)
+    return '~';
+  return 0;
+}
+
+static inline void
+fs_watch_free(struct platform *p)
+{
+  if (p->inotify_wd != -1)
+    inotify_rm_watch(p->inotify_fd, p->inotify_wd);
+  if (p->inotify_fd != -1)
+    close(p->inotify_fd);
+}
+
+#define FS_WATCH 1
+
+#endif // DFM_PLATFORM_LINUX_H
+
diff --git a/platform/posix.h b/platform/posix.h
new file mode 100644
index 0000000..d098030
--- /dev/null
+++ b/platform/posix.h
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2026 Dylan Araps
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef DFM_PLATFORM_POSIX_H
+#define DFM_PLATFORM_POSIX_H
+
+#include <stddef.h>
+
+struct platform {
+  void *_pad;
+};
+
+static inline int
+fs_watch_init(struct platform *p)
+{
+  (void) p;
+  return 0;
+}
+
+static inline void
+fs_watch(struct platform *p, const char *s)
+{
+  (void) p;
+  (void) s;
+}
+
+static inline int
+fs_watch_pump(struct platform *p, const char **s, size_t *l)
+{
+  (void) p;
+  (void) s;
+  (void) l;
+  return 0;
+}
+
+static inline void
+fs_watch_free(struct platform *p)
+{
+  (void) p;
+}
+
+#endif // DFM_PLATFORM_POSIX_H
+