encore-service: Implement renice and ionice utility on here natively

Signed-off-by: Rem01Gaming <[email protected]>

module/customize.sh

@@ -22,7 +22,6 @@ extract "$ZIPFILE" 'system/bin/encore-perfcommon' $MODPATH
 extract "$ZIPFILE" 'system/bin/encore-normal' $MODPATH
 extract "$ZIPFILE" 'system/bin/encore-powersave' $MODPATH
 extract "$ZIPFILE" 'system/bin/encore-performance' $MODPATH
-extract "$ZIPFILE" 'system/bin/encore-setpriority' $MODPATH
 
 # Extract executables
 if [ $ARCH = "arm64" ]; then

src/jni/encore-service.c

@@ -1,8 +1,10 @@
-#include <assert.h>
+#include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <sys/resource.h>
 #include <sys/stat.h>
+#include <sys/syscall.h>
 #include <time.h>
 #include <unistd.h>
 
@@ -27,12 +29,12 @@ char *timern(void) {
   struct tm *tm = localtime(&t);
   char *s = malloc(64 * sizeof(char));
   if (s == NULL) {
-    printf("error: memory allocation failed in timern()\n");
+    perror("error: memory allocation failed in timern()\n");
     return NULL;
   }
   size_t ret = strftime(s, 64, "%c", tm);
   if (ret == 0) {
-    printf("error: strftime failed in timern()\n");
+    perror("error: strftime failed in timern()\n");
     free(s);
     return NULL;
   }
@@ -47,15 +49,15 @@ char *execute_command(const char *command) {
 
   fp = popen(command, "r");
   if (fp == NULL) {
-    printf("error: can't exec command %s\n", command);
+    perror("error: can't exec command %s\n", command);
     return NULL;
   }
 
   while (fgets(buffer, sizeof(buffer), fp) != NULL) {
     size_t buffer_length = strlen(buffer);
     char *new_result = realloc(result, result_length + buffer_length + 1);
     if (new_result == NULL) {
-      printf("error: memory allocation error.\n");
+      perror("error: memory allocation error.\n");
       free(result);
       pclose(fp);
       return NULL;
@@ -70,7 +72,7 @@ char *execute_command(const char *command) {
   }
 
   if (pclose(fp) == -1) {
-    printf("error: closing command stream.\n");
+    perror("error: closing command stream.\n");
   }
 
   return result;
@@ -85,10 +87,10 @@ void append2file(const char *file_path, const char *content) {
       fclose(file);
       chmod(file_path, 0444);
     } else {
-      printf("error: can't open %s\n", file_path);
+      perror("error: can't open %s\n", file_path);
     }
   } else {
-    printf("error: %s does not exist or is not accessible\n", file_path);
+    perror("error: %s does not exist or is not accessible\n", file_path);
   }
 }
 
@@ -103,8 +105,22 @@ void log_error(const char *message) {
 }
 
 void setPriorities(const char *pid) {
-  snprintf(command, sizeof(command), "su -c encore-setpriority %s", pid);
-  system(command);
+  int prio = -20;    // Niceness
+  int io_class = 1;  // I/O class
+  int io_prio = 0;   // I/O priority
+
+  pid_t process_id = atoi(pid);
+
+  if (setpriority(PRIO_PROCESS, process_id, prio) == -1) {
+    perror("Failed to set nice priority");
+    log_error("Failed to set nice priority");
+  }
+
+  if (syscall(SYS_ioprio_set, 1, process_id, (io_class << 13) | io_prio) ==
+      -1) {
+    perror("Failed to set IO priority");
+    log_error("Failed to set IO priority");
+  }
 }
 
 void perf_common(void) { system("su -c encore-perfcommon"); }
@@ -153,7 +169,7 @@ int main(void) {
         "su -c dumpsys power | grep -Eo "
         "'mWakefulness=Awake|mWakefulness=Asleep' | awk -F'=' '{print $2}'");
 
-    /* In rare cases, some device fails to give mWakefulness info. */
+    /* In some cases, some device fails to give mWakefulness info. */
     if (screenstate == NULL) {
       screenstate = execute_command(
           "su -c dumpsys window displays | grep -Eo 'mAwake=true|mAwake=false' "
@@ -162,7 +178,7 @@ int main(void) {
 
     // Handle null screenstate
     if (screenstate == NULL) {
-      printf("error: screenstate is null!\n");
+      perror("error: screenstate is null!\n");
       log_error("screenstate is null!");
     } else if (gamestart && (strcmp(trim_newline(screenstate), "Awake") == 0 ||
                              strcmp(trim_newline(screenstate), "true") == 0)) {
@@ -183,7 +199,7 @@ int main(void) {
         if (pid != NULL) {
           setPriorities(trim_newline(pid));
         } else {
-          printf("error: Game PID is null!\n");
+          perror("error: Game PID is null!\n");
           log_error("Game PID is null!");
         }
       }