implement util enumerator, dryrun, fix #60

src/Makefile.am

@@ -1,5 +1,5 @@
 bin_PROGRAMS   = light
-light_SOURCES  = main.c light.c light.h helpers.c helpers.h impl/sysfs.c impl/sysfs.h
+light_SOURCES  = main.c light.c light.h helpers.c helpers.h impl/sysfs.c impl/sysfs.h impl/util.h impl/util.c
 light_CPPFLAGS = -I../include -D_GNU_SOURCE
 light_CFLAGS   = -W -Wall -Wextra -std=gnu18 -Wno-type-limits -Wno-format-truncation -Wno-unused-parameter
 

src/impl/util.c

@@ -0,0 +1,49 @@
+
+#include "impl/util.h"
+#include "light.h"
+#include "helpers.h"
+
+#include <stdio.h> //snprintf
+#include <stdlib.h> // malloc, free
+#include <dirent.h> // opendir, readdir
+#include <inttypes.h> // PRIu64
+
+bool impl_util_init(light_device_enumerator_t *enumerator)
+{
+    light_device_t *util_device = light_create_device(enumerator, "test", NULL);
+    light_create_device_target(util_device, "dryrun", impl_util_dryrun_set, impl_util_dryrun_get, impl_util_dryrun_getmax, impl_util_dryrun_command, NULL);
+    return true;
+}
+
+bool impl_util_free(light_device_enumerator_t *enumerator)
+{
+    return true;
+}
+
+bool impl_util_dryrun_set(light_device_target_t *target, uint64_t in_value)
+{
+    LIGHT_NOTE("impl_util_dryrun_set: writing brightness %" PRIu64 " to utility target %s", in_value, target->name);
+    return true;
+}
+
+bool impl_util_dryrun_get(light_device_target_t *target, uint64_t *out_value)
+{
+    LIGHT_NOTE("impl_util_dryrun_get: reading brightness (0) from utility target %s", target->name);
+    *out_value = 0;
+    return true;
+}
+
+bool impl_util_dryrun_getmax(light_device_target_t *target, uint64_t *out_value)
+{
+    LIGHT_NOTE("impl_util_dryrun_getmax: reading max. brightness (255) from utility target %s", target->name);
+    *out_value = 255;
+    return true;
+}
+
+bool impl_util_dryrun_command(light_device_target_t *target, char const *command_string)
+{
+    LIGHT_NOTE("impl_util_dryrun_command: running custom command on utility target %s: \"%s\"", target->name, command_string);
+    return true;
+}
+
+

src/impl/util.h

@@ -0,0 +1,15 @@
+
+#pragma once 
+
+#include "light.h"
+
+// Implementation of the util enumerator
+// Enumerates devices for utilities and testing
+
+bool impl_util_init(light_device_enumerator_t *enumerator);
+bool impl_util_free(light_device_enumerator_t *enumerator);
+
+bool impl_util_dryrun_set(light_device_target_t *target, uint64_t in_value);
+bool impl_util_dryrun_get(light_device_target_t *target, uint64_t *out_value);
+bool impl_util_dryrun_getmax(light_device_target_t *target, uint64_t *out_value);
+bool impl_util_dryrun_command(light_device_target_t *target, char const *command_string);

src/light.c

@@ -4,6 +4,7 @@
 
 // The different device implementations
 #include "impl/sysfs.h"
+#include "impl/util.h"
 //#include "impl/razer.h"
 
 #include <stdlib.h> // malloc, free
@@ -431,6 +432,7 @@ light_context_t* light_initialize(int argc, char **argv)
     
     // Create the built-in enumerators
     light_create_enumerator(new_ctx, "sysfs", &impl_sysfs_init, &impl_sysfs_free);
+    light_create_enumerator(new_ctx, "util", &impl_util_init, &impl_util_free);
     //light_create_enumerator(new_ctx, "razer", &impl_razer_init, &impl_razer_free);
 
     // This is where we would create enumerators from plugins as well