PPATH_NUMBER(3)

PPATH_NUMBER(3) | Library Functions Manual | PPATH_NUMBER(3)

# NAME

ppath_number, ppath_copydel_int64, ppath_copyset_int64, ppath_set_int64, ppath_get_int64, ppath_delete_int64, ppath_copydel_uint64, ppath_copyset_uint64, ppath_set_uint64, ppath_get_uint64, ppath_delete_uint64 — integer property path operations

# LIBRARY

Property-List Paths Library (libppath, -lppath)

# SYNOPSIS

#include <ppath/ppath.h>

int
ppath_copydel_int64(prop_object_t, prop_object_t *, const ppath_t *);

int
ppath_copyset_int64(prop_object_t, prop_object_t *, const ppath_t *, int64_t);

int
ppath_set_int64(prop_object_t, const ppath_t *, int64_t);

int
ppath_get_int64(prop_object_t, const ppath_t *, int64_t *);

int
ppath_delete_int64(prop_object_t, const ppath_t *);

int
ppath_copydel_uint64(prop_object_t, prop_object_t *, const ppath_t *);

int
ppath_copyset_uint64(prop_object_t, prop_object_t *, const ppath_t *, uint64_t);

int
ppath_set_uint64(prop_object_t, const ppath_t *, uint64_t);

int
ppath_get_uint64(prop_object_t, const ppath_t *, uint64_t *);

int
ppath_delete_uint64(prop_object_t, const ppath_t *);

# DESCRIPTION

The ppath_number routines read, write, or delete integers in a property list by path.

# FUNCTIONS

ppath_number provides these functions for manipulating integers in a property list by the integers' paths:

ppath_copydel_int64(prop_object_t o, prop_object_t *op, const ppath_t *p)
ppath_copydel_uint64(prop_object_t o, prop_object_t *op, const ppath_t *p)
  Create a copy of the property list o at *op. Delete from the copy the prop_number_t named by p.

  If *op is NULL, ppath_copydel_int64() and ppath_copydel_uint64() create a shallow copy of o at *op. If *op is not NULL, ppath_copydel_int64() and ppath_copydel_uint64() expect for *op to be an existing shallow copy of o.

  For the purposes of ppath_copydel_int64() and ppath_copydel_uint64(), *op is a shallow copy of property list o if equal properties at equal paths are shared between the two. Before ppath_copydel_int64() and ppath_copydel_uint64() modify a property shared by *op and o, they create a private copy of the property for *op.

ppath_copyset_int64(prop_object_t o, prop_object_t *op, const ppath_t *p, int64_t v)
ppath_copyset_uint64(prop_object_t o, prop_object_t *op, const ppath_t *p, uint64_t v)
  Create a copy of the property list o at *op. In the copy, replace with v the prop_number_t named by p.

  If *op is NULL, ppath_copyset_int64() and ppath_copyset_uint64() create a shallow copy of o at *op. If *op is not NULL, ppath_copyset_int64() and ppath_copyset_uint64() expect for *op to be an existing shallow copy of o.

  For the purposes of ppath_copyset_int64() and ppath_copyset_uint64(), *op is a shallow copy of property list o if equal properties at equal paths are shared between the two. Before ppath_copydel_int64() and ppath_copydel_uint64() modify a property shared by *op and o, they create a private copy of the property for *op.

ppath_set_int64(prop_object_t o, const ppath_t *p, int64_t v)
ppath_set_uint64(prop_object_t o, const ppath_t *, uint64_t v)
  Replace with v the prop_number_t in o named by p.
ppath_get_int64(prop_object_t o, const ppath_t *p, int64_t *vp)
ppath_get_uint64(prop_object_t o, const ppath_t *p, uint64_t *vp)
  Retrieve the prop_number_t named by p from o, and write it to *vp.
ppath_delete_int64(prop_object_t o, const ppath_t *p)
ppath_delete_uint64(prop_object_t o, const ppath_t *p)
  Delete the prop_number_t named by p from o. ppath_delete_int64() and ppath_delete_uint64() decrease by one the deleted number's reference count.

# RETURN VALUES

ppath_number routines return 0 on success, and non-zero on error.

# ERRORS

[EFTYPE]
  A ppath_number operation returns EFTYPE when the object named by the path is not a prop_number_t.
[ENOENT]
  ppath_number routines return ENOENT if the path p does not exist in o.
[ENOMEM]
  ppath_set_int64(), ppath_set_uint64(), ppath_copyset_int64(), and ppath_copyset_uint64() return ENOMEM if there was insufficient memory to complete the operation.

# SEE ALSO

ppath(3), ppath_data(3), ppath_object(3), ppath_string(3), proplib(3)

# HISTORY

The ppath_number property container path library first appeared in NetBSD 6.0.

# AUTHORS

David Young <dyoung@pobox.com>

September 13, 2011 | NetBSD 5.99