aboutsummaryrefslogtreecommitdiff
path: root/plugin
diff options
context:
space:
mode:
author3gg <3gg@shellblade.net>2024-01-19 07:01:37 -0800
committer3gg <3gg@shellblade.net>2024-01-19 07:01:37 -0800
commit3bceb37b1cf75b1ffd9b8265209d9b0c3d8417f0 (patch)
treea37e68300409a3a30e6b9ec73b3f4f565fcb72d5 /plugin
parentced89ff7989fde2f3d1828c9be70600d70d72e3d (diff)
Add comments, simplify deletion.
Diffstat (limited to 'plugin')
-rw-r--r--plugin/src/plugin.c50
1 files changed, 27 insertions, 23 deletions
diff --git a/plugin/src/plugin.c b/plugin/src/plugin.c
index f65132f..cd05faf 100644
--- a/plugin/src/plugin.c
+++ b/plugin/src/plugin.c
@@ -19,10 +19,16 @@
19// shared library before the compiler has fully written to it. 19// shared library before the compiler has fully written to it.
20static const int WATCH_MASK = IN_CLOSE_WRITE; 20static const int WATCH_MASK = IN_CLOSE_WRITE;
21 21
22/// Plugin state.
23///
24/// Each Plugin object points to a shared library and holds a state object.
25///
26/// The same shared library can be loaded multiple times, resulting in multiple
27/// Plugin instances, each with its own internal state.
22typedef struct Plugin { 28typedef struct Plugin {
23 void* handle; // First member so that Plugin can be cast to handle. 29 void* handle; // First member so that Plugin can be cast to handle.
24 void* state; // Plugin's internal state. 30 void* state; // Plugin's internal state.
25 bool reloaded; // Whether the plugin has been reloaded state needs to be 31 bool reloaded; // Whether the plugin has been reloaded, state needs to be
26 // re-created. 32 // re-created.
27 PluginEngine* eng; // So that the public API can do stuff with just a Plugin*. 33 PluginEngine* eng; // So that the public API can do stuff with just a Plugin*.
28 mstring filename; 34 mstring filename;
@@ -30,6 +36,7 @@ typedef struct Plugin {
30 36
31DEF_LIST(Plugin); 37DEF_LIST(Plugin);
32 38
39/// Plugin engine.
33typedef struct PluginEngine { 40typedef struct PluginEngine {
34 int inotify_instance; 41 int inotify_instance;
35 int dir_watch; // inotify watch on the plugins directory. 42 int dir_watch; // inotify watch on the plugins directory.
@@ -76,16 +83,31 @@ static bool load_library(Plugin* plugin) {
76 return false; 83 return false;
77} 84}
78 85
86static void delete_plugin_state(Plugin* plugin) {
87 if (plugin->state) {
88 free(plugin->state);
89 plugin->state = 0;
90 }
91}
92
93void set_plugin_state(Plugin* plugin, void* state) {
94 assert(plugin);
95 delete_plugin_state(plugin);
96 plugin->state = state;
97}
98
99void* get_plugin_state(Plugin* plugin) {
100 assert(plugin);
101 return plugin->state;
102}
103
79static void destroy_plugin(Plugin* plugin) { 104static void destroy_plugin(Plugin* plugin) {
80 if (plugin) { 105 if (plugin) {
81 if (plugin->handle) { 106 if (plugin->handle) {
82 dlclose(plugin->handle); 107 dlclose(plugin->handle);
83 plugin->handle = 0; 108 plugin->handle = 0;
84 } 109 }
85 if (plugin->state) { 110 delete_plugin_state(plugin);
86 free(plugin->state);
87 plugin->state = 0;
88 }
89 } 111 }
90} 112}
91 113
@@ -114,24 +136,6 @@ void delete_plugin(Plugin** pPlugin) {
114 } 136 }
115} 137}
116 138
117static void delete_plugin_state(Plugin* plugin) {
118 if (plugin->state) {
119 free(plugin->state);
120 plugin->state = 0;
121 }
122}
123
124void set_plugin_state(Plugin* plugin, void* state) {
125 assert(plugin);
126 delete_plugin_state(plugin);
127 plugin->state = state;
128}
129
130void* get_plugin_state(Plugin* plugin) {
131 assert(plugin);
132 return plugin->state;
133}
134
135bool plugin_reloaded(Plugin* plugin) { 139bool plugin_reloaded(Plugin* plugin) {
136 assert(plugin); 140 assert(plugin);
137 const bool reloaded = plugin->reloaded; 141 const bool reloaded = plugin->reloaded;