限制同名程序同时只运行一个

REPORT  z_barry_thwpinfo     .

DATA : th_opcode(1) TYPE x,
        with_cpu    TYPE x VALUE 0.
CONSTANTS: opcode_wp_list LIKE  th_opcode VALUE 1.

DATA: BEGIN OF wp_tabl OCCURS 10.
        INCLUDE STRUCTURE wpinfo.
DATA: END OF wp_tabl.

FREE : wp_tabl.

CALL 'ThWpInfo'
    ID 'OPCODE' FIELD     opcode_wp_list
    ID 'TAB' FIELD        wp_tabl-*sys*
    ID 'CPU' FIELD        with_cpu.

LOOP AT wp_tabl.
  IF   wp_tabl-wp_report = 'Z_BARRY_THWPINFO' .
    MESSAGE E000(oo) WITH '已经有同名程序在运行！'.
  ENDIF .
ENDLOOP.