1 files changed, 123 insertions, 0 deletions
diff --git a/XUtils.h b/XUtils.h
new file mode 100644
index 0000000..68b9483
--- /dev/null
+++ b/XUtils.h
@@ -0,0 +1,123 @@
+#ifndef HEADER_XUtils
+#define HEADER_XUtils
+/*
+htop - StringUtils.h
+(C) 2004-2011 Hisham H. Muhammad
+(C) 2020-2023 htop dev team
+Released under the GNU GPLv2+, see the COPYING file
+in the source distribution for its full text.
+*/
+
+// IWYU pragma: no_include "config.h"
+#ifndef PACKAGE
+// strchrnul() needs _GNU_SOURCE defined, see PR #1337 for details
+#error "Must have #include \"config.h\" line at the top of the file that includes these XUtils helper functions"
+#endif
+
+#include <stdbool.h>
+#include <stddef.h> // IWYU pragma: keep
+#include <stdio.h>
+#include <stdlib.h> // IWYU pragma: keep
+#include <string.h> // IWYU pragma: keep
+
+#include "Compat.h"
+#include "Macros.h"
+
+
+void fail(void) ATTR_NORETURN;
+
+void* xMalloc(size_t size) ATTR_ALLOC_SIZE1(1) ATTR_MALLOC;
+
+void* xMallocArray(size_t nmemb, size_t size) ATTR_ALLOC_SIZE2(1, 2) ATTR_MALLOC;
+
+void* xCalloc(size_t nmemb, size_t size) ATTR_ALLOC_SIZE2(1, 2) ATTR_MALLOC;
+
+void* xRealloc(void* ptr, size_t size) ATTR_ALLOC_SIZE1(2);
+
+void* xReallocArray(void* ptr, size_t nmemb, size_t size) ATTR_ALLOC_SIZE2(2, 3);
+
+void* xReallocArrayZero(void* ptr, size_t prevmemb, size_t newmemb, size_t size) ATTR_ALLOC_SIZE2(3, 4);
+
+/*
+ * String_startsWith gives better performance if strlen(match) can be computed
+ * at compile time (e.g. when they are immutable string literals). :)
+ */
+ATTR_NONNULL
+static inline bool String_startsWith(const char* s, const char* match) {
+   return strncmp(s, match, strlen(match)) == 0;
+}
+
+bool String_contains_i(const char* s1, const char* s2, bool multi);
+
+ATTR_NONNULL
+static inline bool String_eq(const char* s1, const char* s2) {
+   return strcmp(s1, s2) == 0;
+}
+
+ATTR_NONNULL
+char* String_cat(const char* s1, const char* s2) ATTR_MALLOC;
+
+ATTR_NONNULL
+char* String_trim(const char* in) ATTR_MALLOC;
+
+ATTR_NONNULL_N(1)
+char** String_split(const char* s, char sep, size_t* n);
+
+void String_freeArray(char** s);
+
+ATTR_NONNULL
+char* String_readLine(FILE* fd) ATTR_MALLOC;
+
+ATTR_NONNULL
+static inline char* String_strchrnul(const char* s, int c) {
+#ifdef HAVE_STRCHRNUL
+   return strchrnul(s, c);
+#else
+   char* result = strchr(s, c);
+   if (result)
+      return result;
+   return strchr(s, '\0');
+#endif
+}
+
+/* Always null-terminates dest. Caller must pass a strictly positive size. */
+ATTR_ACCESS3_W(1, 3)
+ATTR_ACCESS3_R(2, 3)
+size_t String_safeStrncpy(char* restrict dest, const char* restrict src, size_t size);
+
+ATTR_FORMAT(printf, 2, 3)
+ATTR_NONNULL_N(1, 2)
+int xAsprintf(char** strp, const char* fmt, ...);
+
+ATTR_FORMAT(printf, 3, 4)
+ATTR_ACCESS3_W(1, 2)
+int xSnprintf(char* buf, size_t len, const char* fmt, ...);
+
+char* xStrdup(const char* str) ATTR_NONNULL ATTR_MALLOC;
+void free_and_xStrdup(char** ptr, const char* str);
+
+ATTR_ACCESS3_R(1, 2)
+char* xStrndup(const char* str, size_t len) ATTR_NONNULL ATTR_MALLOC;
+
+ATTR_ACCESS3_W(2, 3)
+ssize_t xReadfile(const char* pathname, void* buffer, size_t count);
+ATTR_ACCESS3_W(3, 4)
+ssize_t xReadfileat(openat_arg_t dirfd, const char* pathname, void* buffer, size_t count);
+
+ATTR_ACCESS3_R(2, 3)
+ssize_t full_write(int fd, const void* buf, size_t count);
+
+/* Compares floating point values for ordering data entries. In this function,
+   NaN is considered "less than" any other floating point value (regardless of
+   sign), and two NaNs are considered "equal" regardless of payload. */
+int compareRealNumbers(double a, double b);
+
+/* Computes the sum of all positive floating point values in an array.
+   NaN values in the array are skipped. The returned sum will always be
+   nonnegative. */
+double sumPositiveValues(const double* array, size_t count);
+
+/* IEC unit prefixes */
+static const char unitPrefixes[] = { 'K', 'M', 'G', 'T', 'P', 'E', 'Z', 'Y', 'R', 'Q' };
+
+#endif