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#ifndef EINA_SLSTR_H_
#define EINA_SLSTR_H_
#include <stdlib.h>
#include "eina_config.h"
#include "eina_types.h"
#include "eina_tmpstr.h"
#include "eina_strbuf.h"
#include "eina_stringshare.h"
#include "eina_slice.h"
/**
* @addtogroup Eina_Slstr Short lived strings
* @ingroup Eina
*
* @brief API for short lived strings (thread- and scope-local)
*
* This set of APIs provide a convenience feature to create and return strings
* that are meant to be consumed in the local scope of the calling code block.
* The lifecycle of those strings is bound to the loop of the current thread
* or until the clear function is called explicitly.
*
* These strings will be automatically deleted.
*
* These functions shall return NULL only if out of memory.
*
* Do not call free or any similar function on a string created with this API!
*
* @since 1.19
*/
typedef const char Eina_Slstr;
/**
* @brief Create a new short lived string by duplicating another string.
*
* @param string An existing string, it will be copied.
* @return A new Eina_Slstr or NULL if out of memory.
*
* Usage example:
* @code
* char local[200];
* sprintf(local, "Hello %d", value);
* return eina_slstr_copy_new(local);
* @endcode
*
* @since 1.19
*/
EAPI Eina_Slstr *
eina_slstr_copy_new(const char *string);
/**
* @brief Create a new short lived string by taking ownership of a string.
*
* @param string An existing string. It will not be duplicated.
* @return A new Eina_Slstr or NULL if out of memory.
*
* Usage example:
* @code
* char *local = strdup("Hello");
* return eina_slstr_steal_new(local);
* @endcode
*
* @since 1.19
*/
EAPI Eina_Slstr *
eina_slstr_steal_new(char *string);
/**
* @brief Create a new short lived string by taking ownership of a stringshare.
*
* @param string An existing stringshare, one reference belongs to this slstr.
* @return A new Eina_Slstr or NULL if out of memory.
*
* Usage example:
* @code
* Eina_Stringshare *local = eina_stringshare_add("Hello");
* return eina_slstr_stringshare_new(local);
* @endcode
*
* @since 1.19
*/
EAPI Eina_Slstr *
eina_slstr_stringshare_new(Eina_Stringshare *string);
/**
* @brief Create a new short lived string by taking ownership of a tmpstr.
*
* @param string An existing tmpstr, it will be freed later.
* @return A new Eina_Slstr or NULL if out of memory.
*
* Usage example:
* @code
* Eina_Tmpstr *local = eina_tmpstr_add("Hello");
* return eina_slstr_tmpstr_new(local);
* @endcode
*
* @since 1.19
*/
EAPI Eina_Slstr *
eina_slstr_tmpstr_new(Eina_Tmpstr *string);
/**
* @brief Create a new short lived string by taking ownership of a strbuf.
*
* @param string An existing strbuf, that will be released (ie. steal + free).
* @return A new Eina_Slstr or NULL if out of memory.
*
* Usage example:
* @code
* Eina_Strbuf *local = eina_strbuf_new();
* eina_strbuf_append(local, "Hello");
* eina_strbuf_append(local, " world");
* return eina_slstr_strbuf_new(local);
* @endcode
*
* @note Use eina_slstr_steal_new() if the strbuf will be used after this call.
*
* @since 1.19
*/
EAPI Eina_Slstr *
eina_slstr_strbuf_new(Eina_Strbuf *string);
/**
* @brief Create a new short lived string using sprintf.
*
* @param fmt Format string for printf
* @param args List of format parameters for printf
* @return A new Eina_Slstr or NULL if out of memory.
*
* @since 1.19
*/
EAPI Eina_Slstr *
eina_slstr_vasprintf_new(const char *fmt, va_list args);
/**
* @brief Create a new short lived string using sprintf.
*
* @param fmt Format string for printf
* @param args List of format parameters for printf
* @return A new Eina_Slstr or NULL if out of memory.
*
* Usage example:
* @code
* return eina_slstr_printf("Hello world %d!", 42);
* @endcode
*
* @since 1.19
*/
static inline Eina_Slstr *
eina_slstr_printf(const char *fmt, ...)
{
Eina_Slstr *str;
va_list args;
va_start(args, fmt);
str = eina_slstr_vasprintf_new(fmt, args);
va_end(args);
return str;
}
#ifdef EINA_SLSTR_INTERNAL
/**
* @brief Internal function to clear the strings.
*
* This internal function will be called by the local thread's loop to free
* all the strings. Do not call this function unless you are absolutely certain
* that no string in the queue will be used after this point.
*
* @since 1.19
*/
EAPI void
eina_slstr_local_clear(void);
#endif
#endif
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