NAME

src/pmc/imageio.pmc - ImageIO PMC

DESCRIPTION

Freezes and thaws other PMCs.

FUNCTIONS

static opcode_t * GET_VISIT_CURSOR(const PMC *pmc)

static void SET_VISIT_CURSOR(PMC *pmc, const char *cursor)

static void INC_VISIT_CURSOR(PMC *pmc, UINTVAL inc)

static void create_buffer(PARROT_INTERP, PMC *pmc, PMC *info)

static void ensure_buffer_size(PARROT_INTERP, PMC *io, size_t len)

Checks the size of the buffer to see if it can accommodate len more bytes. If not, expands the buffer.

static INTVAL INFO_HAS_DATA(const PMC *io)

static PMC* id_list_get(PARROT_INTERP, const PMC *io, UINTVAL id)

static PMC * visit_todo_list_thaw(PARROT_INTERP, PMC* info)

static void visit_todo_list_freeze(PARROT_INTERP, PMC* pmc, PMC* info)

VTABLES

void init()

Initializes the PMC.

void destroy()

Destroys the PMC.

void mark()

Marks the PMC as alive.

STRING *get_string()

Returns the content of the image as a string.

VTABLE PMC *get_pmc()

Gets the result PMC after a thaw.

VTABLE PMC *get_iter()

Get the todo list for this freeze/thaw for iterating over.

VTABLE INTVAL get_integer()

Returns the flags describing the visit action.

VTABLE void push_integer(INTVAL v)

Pushes the integer v onto the end of the image.

VTABLE void push_float(FLOATVAL v)

Pushes the float v onto the end of the image.

VTABLE void push_string(STRING *v)

Pushes the string *v onto the end of the image.

VTABLE void push_pmc(PMC *v)

Pushes a reference to pmc *v onto the end of the image. If *v hasn't been seen yet, it is also pushed onto the todo list.

void set_pointer(void *value)

Sets the constant table of this ImageIO PMC.

VTABLE INTVAL shift_integer()

Removes and returns an integer from the start of the image.

VTABLE FLOATVAL shift_float()

Removes and returns an number from the start of the image.

VTABLE STRING* shift_string()

Removes and returns a string from the start of the image.

static PMC *shift_pmc()

Removes and returns a reference to a pmc from the start of the image.