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authorAlex Auvolat <alex.auvolat@ens.fr>2015-03-08 13:46:41 +0100
committerAlex Auvolat <alex.auvolat@ens.fr>2015-03-08 13:46:41 +0100
commit93af9a589980403f9887936963a6ce4f189dc020 (patch)
treec2e967e0d3b97ec6a6a3a6c0831e599ddca3f196 /src/kernel/include/ipc.h
parent5e3d036d3a10d919e54035b1365005f26886ed75 (diff)
downloadkogata-93af9a589980403f9887936963a6ce4f189dc020.tar.gz
kogata-93af9a589980403f9887936963a6ce4f189dc020.zip
Channels.
Diffstat (limited to 'src/kernel/include/ipc.h')
-rw-r--r--src/kernel/include/ipc.h21
1 files changed, 21 insertions, 0 deletions
diff --git a/src/kernel/include/ipc.h b/src/kernel/include/ipc.h
new file mode 100644
index 0000000..5558120
--- /dev/null
+++ b/src/kernel/include/ipc.h
@@ -0,0 +1,21 @@
+#pragma once
+
+#include <token.h>
+#include <vfs.h>
+
+// ---- Communication channels
+
+#define CHANNEL_BUFFER_SIZE 1000 // 1000 + other channel_t fields = 1024 - epsilon
+
+typedef struct {
+ fs_handle_t *a, *b;
+} fs_handle_pair_t;
+
+fs_handle_pair_t make_channel();
+
+// ---- Tokens for sharing file descriptors between processes
+
+token_t gen_token_for(fs_handle_t *h);
+fs_handle_t *use_token(token_t tok);
+
+/* vim: set ts=4 sw=4 tw=0 noet :*/